Finding the Fourth Proportional to 1,948.95, 2,689.56 and 1,109.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.95 : 2,689.56 = 1,109.61 : x
2. Step 2: Convert to fraction form
   1,948.95/2,689.56 = 1,109.61/x
3. Step 3: Cross multiply
   1,948.95x = 2,689.56 × 1,109.61
4. Step 4: Simplify right side
   1,948.95x = 2,984,362.67
5. Step 5: Solve for x
   x = 2,984,362.67/1,948.95
6. Step 6: Final answer
   x = 1,531.27