Finding the Fourth Proportional to 1,742.72, 2,405.41 and 1,079.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,742.72 : 2,405.41 = 1,079.19 : x
2. Step 2: Convert to fraction form
   1,742.72/2,405.41 = 1,079.19/x
3. Step 3: Cross multiply
   1,742.72x = 2,405.41 × 1,079.19
4. Step 4: Simplify right side
   1,742.72x = 2,595,894.42
5. Step 5: Solve for x
   x = 2,595,894.42/1,742.72
6. Step 6: Final answer
   x = 1,489.56