Finding the Fourth Proportional to 2,980.71, 4,469.61 and 900.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.71 : 4,469.61 = 900.32 : x
2. Step 2: Convert to fraction form
   2,980.71/4,469.61 = 900.32/x
3. Step 3: Cross multiply
   2,980.71x = 4,469.61 × 900.32
4. Step 4: Simplify right side
   2,980.71x = 4,024,079.28
5. Step 5: Solve for x
   x = 4,024,079.28/2,980.71
6. Step 6: Final answer
   x = 1,350.04