Finding the Fourth Proportional to 2,881.76, 4,322.68 and 1,238.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,881.76 : 4,322.68 = 1,238.32 : x
2. Step 2: Convert to fraction form
   2,881.76/4,322.68 = 1,238.32/x
3. Step 3: Cross multiply
   2,881.76x = 4,322.68 × 1,238.32
4. Step 4: Simplify right side
   2,881.76x = 5,352,861.10
5. Step 5: Solve for x
   x = 5,352,861.10/2,881.76
6. Step 6: Final answer
   x = 1,857.50