Finding the Fourth Proportional to 1,479.90, 2,216.05 and 1,436.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.90 : 2,216.05 = 1,436.10 : x
2. Step 2: Convert to fraction form
   1,479.90/2,216.05 = 1,436.10/x
3. Step 3: Cross multiply
   1,479.90x = 2,216.05 × 1,436.10
4. Step 4: Simplify right side
   1,479.90x = 3,182,469.41
5. Step 5: Solve for x
   x = 3,182,469.41/1,479.90
6. Step 6: Final answer
   x = 2,150.46