Finding the Fourth Proportional to 1,484.31, 2,225.72 and 868.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,484.31 : 2,225.72 = 868.22 : x
2. Step 2: Convert to fraction form
   1,484.31/2,225.72 = 868.22/x
3. Step 3: Cross multiply
   1,484.31x = 2,225.72 × 868.22
4. Step 4: Simplify right side
   1,484.31x = 1,932,399.15
5. Step 5: Solve for x
   x = 1,932,399.15/1,484.31
6. Step 6: Final answer
   x = 1,301.88