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Finding the Fourth Proportional to 1,938.56, 2,907.20 and 1,048.92

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Solution

The fourth proportional to 1,938.56, 2,907.20 and 1,048.92 is: 1,573.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.56 : 2,907.20 = 1,048.92 : x
  2. Step 2: Convert to fraction form
    1,938.56/2,907.20 = 1,048.92/x
  3. Step 3: Cross multiply
    1,938.56x = 2,907.20 × 1,048.92
  4. Step 4: Simplify right side
    1,938.56x = 3,049,414.98
  5. Step 5: Solve for x
    x = 3,049,414.98/1,938.56
  6. Step 6: Final answer
    x = 1,573.04

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