Finding the Fourth Proportional to 2,337.83, 3,507.06 and 856.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,337.83 : 3,507.06 = 856.86 : x
2. Step 2: Convert to fraction form
   2,337.83/3,507.06 = 856.86/x
3. Step 3: Cross multiply
   2,337.83x = 3,507.06 × 856.86
4. Step 4: Simplify right side
   2,337.83x = 3,005,041.90
5. Step 5: Solve for x
   x = 3,005,041.90/2,337.83
6. Step 6: Final answer
   x = 1,285.40