Finding the Fourth Proportional to 1,876.72, 2,590.09 and 1,090.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,876.72 : 2,590.09 = 1,090.77 : x
2. Step 2: Convert to fraction form
   1,876.72/2,590.09 = 1,090.77/x
3. Step 3: Cross multiply
   1,876.72x = 2,590.09 × 1,090.77
4. Step 4: Simplify right side
   1,876.72x = 2,825,186.17
5. Step 5: Solve for x
   x = 2,825,186.17/1,876.72
6. Step 6: Final answer
   x = 1,505.39