Finding the Fourth Proportional to 2,691.10, 4,030.17 and 1,822.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,691.10 : 4,030.17 = 1,822.78 : x
2. Step 2: Convert to fraction form
   2,691.10/4,030.17 = 1,822.78/x
3. Step 3: Cross multiply
   2,691.10x = 4,030.17 × 1,822.78
4. Step 4: Simplify right side
   2,691.10x = 7,346,113.27
5. Step 5: Solve for x
   x = 7,346,113.27/2,691.10
6. Step 6: Final answer
   x = 2,729.78