Finding the Fourth Proportional to 3,703.39, 5,111.23 and 2,131.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,703.39 : 5,111.23 = 2,131.18 : x
2. Step 2: Convert to fraction form
   3,703.39/5,111.23 = 2,131.18/x
3. Step 3: Cross multiply
   3,703.39x = 5,111.23 × 2,131.18
4. Step 4: Simplify right side
   3,703.39x = 10,892,925.60
5. Step 5: Solve for x
   x = 10,892,925.60/3,703.39
6. Step 6: Final answer
   x = 2,941.34