Finding the Fourth Proportional to 1,066.69, 1,471.93 and 624.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.69 : 1,471.93 = 624.51 : x
2. Step 2: Convert to fraction form
   1,066.69/1,471.93 = 624.51/x
3. Step 3: Cross multiply
   1,066.69x = 1,471.93 × 624.51
4. Step 4: Simplify right side
   1,066.69x = 919,235.00
5. Step 5: Solve for x
   x = 919,235.00/1,066.69
6. Step 6: Final answer
   x = 861.76