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Finding the Fourth Proportional to 1,558.44, 2,335.80 and 1,192.12

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Solution

The fourth proportional to 1,558.44, 2,335.80 and 1,192.12 is: 1,786.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.44 : 2,335.80 = 1,192.12 : x
  2. Step 2: Convert to fraction form
    1,558.44/2,335.80 = 1,192.12/x
  3. Step 3: Cross multiply
    1,558.44x = 2,335.80 × 1,192.12
  4. Step 4: Simplify right side
    1,558.44x = 2,784,553.90
  5. Step 5: Solve for x
    x = 2,784,553.90/1,558.44
  6. Step 6: Final answer
    x = 1,786.76

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