Finding the Fourth Proportional to 3,510.90, 5,261.94 and 3,071.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,510.90 : 5,261.94 = 3,071.12 : x
2. Step 2: Convert to fraction form
   3,510.90/5,261.94 = 3,071.12/x
3. Step 3: Cross multiply
   3,510.90x = 5,261.94 × 3,071.12
4. Step 4: Simplify right side
   3,510.90x = 16,160,022.86
5. Step 5: Solve for x
   x = 16,160,022.86/3,510.90
6. Step 6: Final answer
   x = 4,602.81