Finding the Fourth Proportional to 2,957.31, 4,080.63 and 1,761.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,957.31 : 4,080.63 = 1,761.93 : x
2. Step 2: Convert to fraction form
   2,957.31/4,080.63 = 1,761.93/x
3. Step 3: Cross multiply
   2,957.31x = 4,080.63 × 1,761.93
4. Step 4: Simplify right side
   2,957.31x = 7,189,784.42
5. Step 5: Solve for x
   x = 7,189,784.42/2,957.31
6. Step 6: Final answer
   x = 2,431.19