Finding the Fourth Proportional to 1,068.55, 1,474.40 and 626.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.55 : 1,474.40 = 626.47 : x
2. Step 2: Convert to fraction form
   1,068.55/1,474.40 = 626.47/x
3. Step 3: Cross multiply
   1,068.55x = 1,474.40 × 626.47
4. Step 4: Simplify right side
   1,068.55x = 923,665.25
5. Step 5: Solve for x
   x = 923,665.25/1,068.55
6. Step 6: Final answer
   x = 864.41