Finding the Fourth Proportional to 3,703.10, 5,111.56 and 2,131.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,703.10 : 5,111.56 = 2,131.82 : x
2. Step 2: Convert to fraction form
   3,703.10/5,111.56 = 2,131.82/x
3. Step 3: Cross multiply
   3,703.10x = 5,111.56 × 2,131.82
4. Step 4: Simplify right side
   3,703.10x = 10,896,894.95
5. Step 5: Solve for x
   x = 10,896,894.95/3,703.10
6. Step 6: Final answer
   x = 2,942.65