Finding the Fourth Proportional to 3,712.78, 5,123.70 and 2,034.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,712.78 : 5,123.70 = 2,034.16 : x
2. Step 2: Convert to fraction form
   3,712.78/5,123.70 = 2,034.16/x
3. Step 3: Cross multiply
   3,712.78x = 5,123.70 × 2,034.16
4. Step 4: Simplify right side
   3,712.78x = 10,422,425.59
5. Step 5: Solve for x
   x = 10,422,425.59/3,712.78
6. Step 6: Final answer
   x = 2,807.18