Finding the Fourth Proportional to 2,290.02, 3,160.31 and 1,295.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.02 : 3,160.31 = 1,295.48 : x
2. Step 2: Convert to fraction form
   2,290.02/3,160.31 = 1,295.48/x
3. Step 3: Cross multiply
   2,290.02x = 3,160.31 × 1,295.48
4. Step 4: Simplify right side
   2,290.02x = 4,094,096.12
5. Step 5: Solve for x
   x = 4,094,096.12/2,290.02
6. Step 6: Final answer
   x = 1,787.80