Finding the Fourth Proportional to 1,066.41, 1,471.59 and 624.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.41 : 1,471.59 = 624.56 : x
2. Step 2: Convert to fraction form
   1,066.41/1,471.59 = 624.56/x
3. Step 3: Cross multiply
   1,066.41x = 1,471.59 × 624.56
4. Step 4: Simplify right side
   1,066.41x = 919,088.89
5. Step 5: Solve for x
   x = 919,088.89/1,066.41
6. Step 6: Final answer
   x = 861.85