Finding the Fourth Proportional to 2,155.86, 3,233.12 and 694.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.86 : 3,233.12 = 694.71 : x
2. Step 2: Convert to fraction form
   2,155.86/3,233.12 = 694.71/x
3. Step 3: Cross multiply
   2,155.86x = 3,233.12 × 694.71
4. Step 4: Simplify right side
   2,155.86x = 2,246,077.32
5. Step 5: Solve for x
   x = 2,246,077.32/2,155.86
6. Step 6: Final answer
   x = 1,041.85