Finding the Fourth Proportional to 2,983.17, 4,444.78 and 2,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,983.17 : 4,444.78 = 2,815.50 : x
2. Step 2: Convert to fraction form
   2,983.17/4,444.78 = 2,815.50/x
3. Step 3: Cross multiply
   2,983.17x = 4,444.78 × 2,815.50
4. Step 4: Simplify right side
   2,983.17x = 12,514,271.05
5. Step 5: Solve for x
   x = 12,514,271.05/2,983.17
6. Step 6: Final answer
   x = 4,194.96