Finding the Fourth Proportional to 2,132.07, 3,198.89 and 899.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.07 : 3,198.89 = 899.37 : x
2. Step 2: Convert to fraction form
   2,132.07/3,198.89 = 899.37/x
3. Step 3: Cross multiply
   2,132.07x = 3,198.89 × 899.37
4. Step 4: Simplify right side
   2,132.07x = 2,876,981.20
5. Step 5: Solve for x
   x = 2,876,981.20/2,132.07
6. Step 6: Final answer
   x = 1,349.38