Finding the Fourth Proportional to 1,044.90, 1,442.25 and 651.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,044.90 : 1,442.25 = 651.72 : x
2. Step 2: Convert to fraction form
   1,044.90/1,442.25 = 651.72/x
3. Step 3: Cross multiply
   1,044.90x = 1,442.25 × 651.72
4. Step 4: Simplify right side
   1,044.90x = 939,943.17
5. Step 5: Solve for x
   x = 939,943.17/1,044.90
6. Step 6: Final answer
   x = 899.55