Finding the Fourth Proportional to 1,066.34, 1,471.56 and 624.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.34 : 1,471.56 = 624.26 : x
2. Step 2: Convert to fraction form
   1,066.34/1,471.56 = 624.26/x
3. Step 3: Cross multiply
   1,066.34x = 1,471.56 × 624.26
4. Step 4: Simplify right side
   1,066.34x = 918,630.86
5. Step 5: Solve for x
   x = 918,630.86/1,066.34
6. Step 6: Final answer
   x = 861.48