Finding the Fourth Proportional to 1,352.59, 1,867.05 and 898.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,352.59 : 1,867.05 = 898.25 : x
2. Step 2: Convert to fraction form
   1,352.59/1,867.05 = 898.25/x
3. Step 3: Cross multiply
   1,352.59x = 1,867.05 × 898.25
4. Step 4: Simplify right side
   1,352.59x = 1,677,068.33
5. Step 5: Solve for x
   x = 1,677,068.33/1,352.59
6. Step 6: Final answer
   x = 1,239.90