Finding the Fourth Proportional to 1,598.22, 2,205.56 and 899.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,598.22 : 2,205.56 = 899.59 : x
2. Step 2: Convert to fraction form
   1,598.22/2,205.56 = 899.59/x
3. Step 3: Cross multiply
   1,598.22x = 2,205.56 × 899.59
4. Step 4: Simplify right side
   1,598.22x = 1,984,099.72
5. Step 5: Solve for x
   x = 1,984,099.72/1,598.22
6. Step 6: Final answer
   x = 1,241.44