Finding the Fourth Proportional to 1,902.24, 2,624.88 and 1,116.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,902.24 : 2,624.88 = 1,116.12 : x
2. Step 2: Convert to fraction form
   1,902.24/2,624.88 = 1,116.12/x
3. Step 3: Cross multiply
   1,902.24x = 2,624.88 × 1,116.12
4. Step 4: Simplify right side
   1,902.24x = 2,929,681.07
5. Step 5: Solve for x
   x = 2,929,681.07/1,902.24
6. Step 6: Final answer
   x = 1,540.12