Finding the Fourth Proportional to 2,083.76, 3,123.52 and 1,159.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.76 : 3,123.52 = 1,159.72 : x
2. Step 2: Convert to fraction form
   2,083.76/3,123.52 = 1,159.72/x
3. Step 3: Cross multiply
   2,083.76x = 3,123.52 × 1,159.72
4. Step 4: Simplify right side
   2,083.76x = 3,622,408.61
5. Step 5: Solve for x
   x = 3,622,408.61/2,083.76
6. Step 6: Final answer
   x = 1,738.40