Finding the Fourth Proportional to 2,498.64, 3,742.69 and 1,387.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.64 : 3,742.69 = 1,387.99 : x
2. Step 2: Convert to fraction form
   2,498.64/3,742.69 = 1,387.99/x
3. Step 3: Cross multiply
   2,498.64x = 3,742.69 × 1,387.99
4. Step 4: Simplify right side
   2,498.64x = 5,194,816.29
5. Step 5: Solve for x
   x = 5,194,816.29/2,498.64
6. Step 6: Final answer
   x = 2,079.06