Finding the Fourth Proportional to 1,598.46, 2,205.78 and 899.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,598.46 : 2,205.78 = 899.82 : x
2. Step 2: Convert to fraction form
   1,598.46/2,205.78 = 899.82/x
3. Step 3: Cross multiply
   1,598.46x = 2,205.78 × 899.82
4. Step 4: Simplify right side
   1,598.46x = 1,984,804.96
5. Step 5: Solve for x
   x = 1,984,804.96/1,598.46
6. Step 6: Final answer
   x = 1,241.70