Finding the Fourth Proportional to 2,047.38, 2,825.40 and 1,115.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.38 : 2,825.40 = 1,115.88 : x
2. Step 2: Convert to fraction form
   2,047.38/2,825.40 = 1,115.88/x
3. Step 3: Cross multiply
   2,047.38x = 2,825.40 × 1,115.88
4. Step 4: Simplify right side
   2,047.38x = 3,152,807.35
5. Step 5: Solve for x
   x = 3,152,807.35/2,047.38
6. Step 6: Final answer
   x = 1,539.92