Finding the Fourth Proportional to 2,507.00, 3,459.30 and 1,387.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.00 : 3,459.30 = 1,387.92 : x
2. Step 2: Convert to fraction form
   2,507.00/3,459.30 = 1,387.92/x
3. Step 3: Cross multiply
   2,507.00x = 3,459.30 × 1,387.92
4. Step 4: Simplify right side
   2,507.00x = 4,801,231.66
5. Step 5: Solve for x
   x = 4,801,231.66/2,507.00
6. Step 6: Final answer
   x = 1,915.13