Finding the Fourth Proportional to 1,876.89, 2,590.34 and 1,090.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,876.89 : 2,590.34 = 1,090.78 : x
2. Step 2: Convert to fraction form
   1,876.89/2,590.34 = 1,090.78/x
3. Step 3: Cross multiply
   1,876.89x = 2,590.34 × 1,090.78
4. Step 4: Simplify right side
   1,876.89x = 2,825,494.98
5. Step 5: Solve for x
   x = 2,825,494.98/1,876.89
6. Step 6: Final answer
   x = 1,505.42