Finding the Fourth Proportional to 2,156.68, 3,234.21 and 1,061.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.68 : 3,234.21 = 1,061.56 : x
2. Step 2: Convert to fraction form
   2,156.68/3,234.21 = 1,061.56/x
3. Step 3: Cross multiply
   2,156.68x = 3,234.21 × 1,061.56
4. Step 4: Simplify right side
   2,156.68x = 3,433,307.97
5. Step 5: Solve for x
   x = 3,433,307.97/2,156.68
6. Step 6: Final answer
   x = 1,591.94