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Finding the Fourth Proportional to 2,655.47, 3,983.20 and 1,264.59

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Solution

The fourth proportional to 2,655.47, 3,983.20 and 1,264.59 is: 1,896.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.47 : 3,983.20 = 1,264.59 : x
  2. Step 2: Convert to fraction form
    2,655.47/3,983.20 = 1,264.59/x
  3. Step 3: Cross multiply
    2,655.47x = 3,983.20 × 1,264.59
  4. Step 4: Simplify right side
    2,655.47x = 5,037,113.24
  5. Step 5: Solve for x
    x = 5,037,113.24/2,655.47
  6. Step 6: Final answer
    x = 1,896.88

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