Finding the Fourth Proportional to 1,877.90, 2,591.06 and 1,091.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,877.90 : 2,591.06 = 1,091.48 : x
2. Step 2: Convert to fraction form
   1,877.90/2,591.06 = 1,091.48/x
3. Step 3: Cross multiply
   1,877.90x = 2,591.06 × 1,091.48
4. Step 4: Simplify right side
   1,877.90x = 2,828,090.17
5. Step 5: Solve for x
   x = 2,828,090.17/1,877.90
6. Step 6: Final answer
   x = 1,505.99