Finding the Fourth Proportional to 2,143.95, 3,217.17 and 1,156.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.95 : 3,217.17 = 1,156.77 : x
2. Step 2: Convert to fraction form
   2,143.95/3,217.17 = 1,156.77/x
3. Step 3: Cross multiply
   2,143.95x = 3,217.17 × 1,156.77
4. Step 4: Simplify right side
   2,143.95x = 3,721,511.27
5. Step 5: Solve for x
   x = 3,721,511.27/2,143.95
6. Step 6: Final answer
   x = 1,735.82