Finding the Fourth Proportional to 2,479.57, 3,720.03 and 1,384.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479.57 : 3,720.03 = 1,384.72 : x
2. Step 2: Convert to fraction form
   2,479.57/3,720.03 = 1,384.72/x
3. Step 3: Cross multiply
   2,479.57x = 3,720.03 × 1,384.72
4. Step 4: Simplify right side
   2,479.57x = 5,151,199.94
5. Step 5: Solve for x
   x = 5,151,199.94/2,479.57
6. Step 6: Final answer
   x = 2,077.46