Finding the Fourth Proportional to 1,597.50, 2,204.64 and 899.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.50 : 2,204.64 = 899.10 : x
2. Step 2: Convert to fraction form
   1,597.50/2,204.64 = 899.10/x
3. Step 3: Cross multiply
   1,597.50x = 2,204.64 × 899.10
4. Step 4: Simplify right side
   1,597.50x = 1,982,191.82
5. Step 5: Solve for x
   x = 1,982,191.82/1,597.50
6. Step 6: Final answer
   x = 1,240.81