Finding the Fourth Proportional to 2,060.57, 3,090.42 and 761.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,060.57 : 3,090.42 = 761.15 : x
2. Step 2: Convert to fraction form
   2,060.57/3,090.42 = 761.15/x
3. Step 3: Cross multiply
   2,060.57x = 3,090.42 × 761.15
4. Step 4: Simplify right side
   2,060.57x = 2,352,273.18
5. Step 5: Solve for x
   x = 2,352,273.18/2,060.57
6. Step 6: Final answer
   x = 1,141.56