Finding the Fourth Proportional to 1,449.30, 2,165.50 and 1,113.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,449.30 : 2,165.50 = 1,113.96 : x
2. Step 2: Convert to fraction form
   1,449.30/2,165.50 = 1,113.96/x
3. Step 3: Cross multiply
   1,449.30x = 2,165.50 × 1,113.96
4. Step 4: Simplify right side
   1,449.30x = 2,412,280.38
5. Step 5: Solve for x
   x = 2,412,280.38/1,449.30
6. Step 6: Final answer
   x = 1,664.45