Finding the Fourth Proportional to 2,093.76, 3,140.82 and 861.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.76 : 3,140.82 = 861.24 : x
2. Step 2: Convert to fraction form
   2,093.76/3,140.82 = 861.24/x
3. Step 3: Cross multiply
   2,093.76x = 3,140.82 × 861.24
4. Step 4: Simplify right side
   2,093.76x = 2,704,999.82
5. Step 5: Solve for x
   x = 2,704,999.82/2,093.76
6. Step 6: Final answer
   x = 1,291.93