Finding the Fourth Proportional to 2,200.93, 3,298.57 and 900.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.93 : 3,298.57 = 900.85 : x
2. Step 2: Convert to fraction form
   2,200.93/3,298.57 = 900.85/x
3. Step 3: Cross multiply
   2,200.93x = 3,298.57 × 900.85
4. Step 4: Simplify right side
   2,200.93x = 2,971,516.78
5. Step 5: Solve for x
   x = 2,971,516.78/2,200.93
6. Step 6: Final answer
   x = 1,350.12