Finding the Fourth Proportional to 1,053.88, 1,454.18 and 588.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.88 : 1,454.18 = 588.16 : x
2. Step 2: Convert to fraction form
   1,053.88/1,454.18 = 588.16/x
3. Step 3: Cross multiply
   1,053.88x = 1,454.18 × 588.16
4. Step 4: Simplify right side
   1,053.88x = 855,290.51
5. Step 5: Solve for x
   x = 855,290.51/1,053.88
6. Step 6: Final answer
   x = 811.56