Finding the Fourth Proportional to 2,132.69, 3,199.47 and 900.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.69 : 3,199.47 = 900.10 : x
2. Step 2: Convert to fraction form
   2,132.69/3,199.47 = 900.10/x
3. Step 3: Cross multiply
   2,132.69x = 3,199.47 × 900.10
4. Step 4: Simplify right side
   2,132.69x = 2,879,842.95
5. Step 5: Solve for x
   x = 2,879,842.95/2,132.69
6. Step 6: Final answer
   x = 1,350.33