Finding the Fourth Proportional to 1,948.98, 2,689.67 and 1,109.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.98 : 2,689.67 = 1,109.83 : x
2. Step 2: Convert to fraction form
   1,948.98/2,689.67 = 1,109.83/x
3. Step 3: Cross multiply
   1,948.98x = 2,689.67 × 1,109.83
4. Step 4: Simplify right side
   1,948.98x = 2,985,076.46
5. Step 5: Solve for x
   x = 2,985,076.46/1,948.98
6. Step 6: Final answer
   x = 1,531.61