Finding the Fourth Proportional to 3,761.31, 5,640.72 and 1,296.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,761.31 : 5,640.72 = 1,296.07 : x
2. Step 2: Convert to fraction form
   3,761.31/5,640.72 = 1,296.07/x
3. Step 3: Cross multiply
   3,761.31x = 5,640.72 × 1,296.07
4. Step 4: Simplify right side
   3,761.31x = 7,310,767.97
5. Step 5: Solve for x
   x = 7,310,767.97/3,761.31
6. Step 6: Final answer
   x = 1,943.68