Finding the Fourth Proportional to 2,919.86, 4,354.05 and 2,893.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,919.86 : 4,354.05 = 2,893.53 : x
2. Step 2: Convert to fraction form
   2,919.86/4,354.05 = 2,893.53/x
3. Step 3: Cross multiply
   2,919.86x = 4,354.05 × 2,893.53
4. Step 4: Simplify right side
   2,919.86x = 12,598,574.30
5. Step 5: Solve for x
   x = 12,598,574.30/2,919.86
6. Step 6: Final answer
   x = 4,314.79