Finding the Fourth Proportional to 1,930.41, 2,663.98 and 1,091.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,930.41 : 2,663.98 = 1,091.15 : x
2. Step 2: Convert to fraction form
   1,930.41/2,663.98 = 1,091.15/x
3. Step 3: Cross multiply
   1,930.41x = 2,663.98 × 1,091.15
4. Step 4: Simplify right side
   1,930.41x = 2,906,801.78
5. Step 5: Solve for x
   x = 2,906,801.78/1,930.41
6. Step 6: Final answer
   x = 1,505.80