Finding the Fourth Proportional to 2,091.54, 2,886.34 and 1,160.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.54 : 2,886.34 = 1,160.04 : x
2. Step 2: Convert to fraction form
   2,091.54/2,886.34 = 1,160.04/x
3. Step 3: Cross multiply
   2,091.54x = 2,886.34 × 1,160.04
4. Step 4: Simplify right side
   2,091.54x = 3,348,269.85
5. Step 5: Solve for x
   x = 3,348,269.85/2,091.54
6. Step 6: Final answer
   x = 1,600.86