Finding the Fourth Proportional to 1,630.80, 2,250.72 and 1,107

Step by Step Solution

1. Step 1: Write the proportion equation
   1,630.80 : 2,250.72 = 1,107 : x
2. Step 2: Convert to fraction form
   1,630.80/2,250.72 = 1,107/x
3. Step 3: Cross multiply
   1,630.80x = 2,250.72 × 1,107
4. Step 4: Simplify right side
   1,630.80x = 2,491,547.04
5. Step 5: Solve for x
   x = 2,491,547.04/1,630.80
6. Step 6: Final answer
   x = 1,527.81