Finding the Fourth Proportional to 4,071.72, 5,618.78 and 2,303.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,071.72 : 5,618.78 = 2,303.30 : x
2. Step 2: Convert to fraction form
   4,071.72/5,618.78 = 2,303.30/x
3. Step 3: Cross multiply
   4,071.72x = 5,618.78 × 2,303.30
4. Step 4: Simplify right side
   4,071.72x = 12,941,696.36
5. Step 5: Solve for x
   x = 12,941,696.36/4,071.72
6. Step 6: Final answer
   x = 3,178.43