Finding the Fourth Proportional to 1,066.51, 1,471.92 and 624.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.51 : 1,471.92 = 624.41 : x
2. Step 2: Convert to fraction form
   1,066.51/1,471.92 = 624.41/x
3. Step 3: Cross multiply
   1,066.51x = 1,471.92 × 624.41
4. Step 4: Simplify right side
   1,066.51x = 919,074.21
5. Step 5: Solve for x
   x = 919,074.21/1,066.51
6. Step 6: Final answer
   x = 861.76