Finding the Fourth Proportional to 2,156.70, 3,235.80 and 1,061.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.70 : 3,235.80 = 1,061.83 : x
2. Step 2: Convert to fraction form
   2,156.70/3,235.80 = 1,061.83/x
3. Step 3: Cross multiply
   2,156.70x = 3,235.80 × 1,061.83
4. Step 4: Simplify right side
   2,156.70x = 3,435,866.95
5. Step 5: Solve for x
   x = 3,435,866.95/2,156.70
6. Step 6: Final answer
   x = 1,593.12