Finding the Fourth Proportional to 2,276.46, 3,139.43 and 1,518.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.46 : 3,139.43 = 1,518.91 : x
2. Step 2: Convert to fraction form
   2,276.46/3,139.43 = 1,518.91/x
3. Step 3: Cross multiply
   2,276.46x = 3,139.43 × 1,518.91
4. Step 4: Simplify right side
   2,276.46x = 4,768,496.18
5. Step 5: Solve for x
   x = 4,768,496.18/2,276.46
6. Step 6: Final answer
   x = 2,094.70