Finding the Fourth Proportional to 1,250.30, 1,875.27 and 520.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,250.30 : 1,875.27 = 520.04 : x
2. Step 2: Convert to fraction form
   1,250.30/1,875.27 = 520.04/x
3. Step 3: Cross multiply
   1,250.30x = 1,875.27 × 520.04
4. Step 4: Simplify right side
   1,250.30x = 975,215.41
5. Step 5: Solve for x
   x = 975,215.41/1,250.30
6. Step 6: Final answer
   x = 779.99