Finding the Fourth Proportional to 2,612.38, 3,919.74 and 1,152.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.38 : 3,919.74 = 1,152.04 : x
2. Step 2: Convert to fraction form
   2,612.38/3,919.74 = 1,152.04/x
3. Step 3: Cross multiply
   2,612.38x = 3,919.74 × 1,152.04
4. Step 4: Simplify right side
   2,612.38x = 4,515,697.27
5. Step 5: Solve for x
   x = 4,515,697.27/2,612.38
6. Step 6: Final answer
   x = 1,728.58