Finding the Fourth Proportional to 1,066.53, 1,471.82 and 624.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.53 : 1,471.82 = 624.34 : x
2. Step 2: Convert to fraction form
   1,066.53/1,471.82 = 624.34/x
3. Step 3: Cross multiply
   1,066.53x = 1,471.82 × 624.34
4. Step 4: Simplify right side
   1,066.53x = 918,916.10
5. Step 5: Solve for x
   x = 918,916.10/1,066.53
6. Step 6: Final answer
   x = 861.59