Finding the Fourth Proportional to 3,071.94, 4,238.21 and 1,876.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,071.94 : 4,238.21 = 1,876.61 : x
2. Step 2: Convert to fraction form
   3,071.94/4,238.21 = 1,876.61/x
3. Step 3: Cross multiply
   3,071.94x = 4,238.21 × 1,876.61
4. Step 4: Simplify right side
   3,071.94x = 7,953,436.69
5. Step 5: Solve for x
   x = 7,953,436.69/3,071.94
6. Step 6: Final answer
   x = 2,589.06