Finding the Fourth Proportional to 2,915.95, 4,363.65 and 1,820.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,915.95 : 4,363.65 = 1,820.83 : x
2. Step 2: Convert to fraction form
   2,915.95/4,363.65 = 1,820.83/x
3. Step 3: Cross multiply
   2,915.95x = 4,363.65 × 1,820.83
4. Step 4: Simplify right side
   2,915.95x = 7,945,464.83
5. Step 5: Solve for x
   x = 7,945,464.83/2,915.95
6. Step 6: Final answer
   x = 2,724.83