Finding the Fourth Proportional to 1,748.72, 2,414.94 and 1,085.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,748.72 : 2,414.94 = 1,085.78 : x
2. Step 2: Convert to fraction form
   1,748.72/2,414.94 = 1,085.78/x
3. Step 3: Cross multiply
   1,748.72x = 2,414.94 × 1,085.78
4. Step 4: Simplify right side
   1,748.72x = 2,622,093.55
5. Step 5: Solve for x
   x = 2,622,093.55/1,748.72
6. Step 6: Final answer
   x = 1,499.44