Finding the Fourth Proportional to 1,597.90, 2,205.10 and 899.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.90 : 2,205.10 = 899.28 : x
2. Step 2: Convert to fraction form
   1,597.90/2,205.10 = 899.28/x
3. Step 3: Cross multiply
   1,597.90x = 2,205.10 × 899.28
4. Step 4: Simplify right side
   1,597.90x = 1,983,002.33
5. Step 5: Solve for x
   x = 1,983,002.33/1,597.90
6. Step 6: Final answer
   x = 1,241.01