Finding the Fourth Proportional to 1,054.17, 1,454.72 and 588.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.17 : 1,454.72 = 588.42 : x
2. Step 2: Convert to fraction form
   1,054.17/1,454.72 = 588.42/x
3. Step 3: Cross multiply
   1,054.17x = 1,454.72 × 588.42
4. Step 4: Simplify right side
   1,054.17x = 855,983.40
5. Step 5: Solve for x
   x = 855,983.40/1,054.17
6. Step 6: Final answer
   x = 812.00