Finding the Fourth Proportional to 3,712.74, 5,123.59 and 2,140.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,712.74 : 5,123.59 = 2,140.83 : x
2. Step 2: Convert to fraction form
   3,712.74/5,123.59 = 2,140.83/x
3. Step 3: Cross multiply
   3,712.74x = 5,123.59 × 2,140.83
4. Step 4: Simplify right side
   3,712.74x = 10,968,729.83
5. Step 5: Solve for x
   x = 10,968,729.83/3,712.74
6. Step 6: Final answer
   x = 2,954.35