Finding the Fourth Proportional to 1,053.80, 1,454.24 and 588.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.80 : 1,454.24 = 588.04 : x
2. Step 2: Convert to fraction form
   1,053.80/1,454.24 = 588.04/x
3. Step 3: Cross multiply
   1,053.80x = 1,454.24 × 588.04
4. Step 4: Simplify right side
   1,053.80x = 855,151.29
5. Step 5: Solve for x
   x = 855,151.29/1,053.80
6. Step 6: Final answer
   x = 811.49