Finding the Fourth Proportional to 1,054.32, 1,454.88 and 588.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.32 : 1,454.88 = 588.56 : x
2. Step 2: Convert to fraction form
   1,054.32/1,454.88 = 588.56/x
3. Step 3: Cross multiply
   1,054.32x = 1,454.88 × 588.56
4. Step 4: Simplify right side
   1,054.32x = 856,284.17
5. Step 5: Solve for x
   x = 856,284.17/1,054.32
6. Step 6: Final answer
   x = 812.17