Finding the Fourth Proportional to 2,288.47, 3,156.42 and 1,449.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.47 : 3,156.42 = 1,449.31 : x
2. Step 2: Convert to fraction form
   2,288.47/3,156.42 = 1,449.31/x
3. Step 3: Cross multiply
   2,288.47x = 3,156.42 × 1,449.31
4. Step 4: Simplify right side
   2,288.47x = 4,574,631.07
5. Step 5: Solve for x
   x = 4,574,631.07/2,288.47
6. Step 6: Final answer
   x = 1,998.99