Finding the Fourth Proportional to 1,066.93, 1,472.17 and 624.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.93 : 1,472.17 = 624.82 : x
2. Step 2: Convert to fraction form
   1,066.93/1,472.17 = 624.82/x
3. Step 3: Cross multiply
   1,066.93x = 1,472.17 × 624.82
4. Step 4: Simplify right side
   1,066.93x = 919,841.26
5. Step 5: Solve for x
   x = 919,841.26/1,066.93
6. Step 6: Final answer
   x = 862.14