Finding the Fourth Proportional to 2,131.10, 2,941.05 and 1,291.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.10 : 2,941.05 = 1,291.83 : x
2. Step 2: Convert to fraction form
   2,131.10/2,941.05 = 1,291.83/x
3. Step 3: Cross multiply
   2,131.10x = 2,941.05 × 1,291.83
4. Step 4: Simplify right side
   2,131.10x = 3,799,336.62
5. Step 5: Solve for x
   x = 3,799,336.62/2,131.10
6. Step 6: Final answer
   x = 1,782.81