Finding the Fourth Proportional to 1,449.32, 2,174.52 and 872.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,449.32 : 2,174.52 = 872.60 : x
2. Step 2: Convert to fraction form
   1,449.32/2,174.52 = 872.60/x
3. Step 3: Cross multiply
   1,449.32x = 2,174.52 × 872.60
4. Step 4: Simplify right side
   1,449.32x = 1,897,486.15
5. Step 5: Solve for x
   x = 1,897,486.15/1,449.32
6. Step 6: Final answer
   x = 1,309.23