Finding the Fourth Proportional to 2,483.48, 3,723.12 and 1,388.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.48 : 3,723.12 = 1,388.20 : x
2. Step 2: Convert to fraction form
   2,483.48/3,723.12 = 1,388.20/x
3. Step 3: Cross multiply
   2,483.48x = 3,723.12 × 1,388.20
4. Step 4: Simplify right side
   2,483.48x = 5,168,435.18
5. Step 5: Solve for x
   x = 5,168,435.18/2,483.48
6. Step 6: Final answer
   x = 2,081.13