Finding the Fourth Proportional to 1,068.53, 1,474.72 and 626.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.53 : 1,474.72 = 626.57 : x
2. Step 2: Convert to fraction form
   1,068.53/1,474.72 = 626.57/x
3. Step 3: Cross multiply
   1,068.53x = 1,474.72 × 626.57
4. Step 4: Simplify right side
   1,068.53x = 924,015.31
5. Step 5: Solve for x
   x = 924,015.31/1,068.53
6. Step 6: Final answer
   x = 864.75