Finding the Fourth Proportional to 1,066.06, 1,471.53 and 624.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.06 : 1,471.53 = 624.11 : x
2. Step 2: Convert to fraction form
   1,066.06/1,471.53 = 624.11/x
3. Step 3: Cross multiply
   1,066.06x = 1,471.53 × 624.11
4. Step 4: Simplify right side
   1,066.06x = 918,391.57
5. Step 5: Solve for x
   x = 918,391.57/1,066.06
6. Step 6: Final answer
   x = 861.48