Finding the Fourth Proportional to 2,100.66, 3,150.39 and 801.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.66 : 3,150.39 = 801.83 : x
2. Step 2: Convert to fraction form
   2,100.66/3,150.39 = 801.83/x
3. Step 3: Cross multiply
   2,100.66x = 3,150.39 × 801.83
4. Step 4: Simplify right side
   2,100.66x = 2,526,057.45
5. Step 5: Solve for x
   x = 2,526,057.45/2,100.66
6. Step 6: Final answer
   x = 1,202.51