Finding the Fourth Proportional to 1,877.50, 2,590.51 and 1,091.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,877.50 : 2,590.51 = 1,091.10 : x
2. Step 2: Convert to fraction form
   1,877.50/2,590.51 = 1,091.10/x
3. Step 3: Cross multiply
   1,877.50x = 2,590.51 × 1,091.10
4. Step 4: Simplify right side
   1,877.50x = 2,826,505.46
5. Step 5: Solve for x
   x = 2,826,505.46/1,877.50
6. Step 6: Final answer
   x = 1,505.46