Finding the Fourth Proportional to 3,116.42, 4,300.72 and 1,719.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,116.42 : 4,300.72 = 1,719.18 : x
2. Step 2: Convert to fraction form
   3,116.42/4,300.72 = 1,719.18/x
3. Step 3: Cross multiply
   3,116.42x = 4,300.72 × 1,719.18
4. Step 4: Simplify right side
   3,116.42x = 7,393,711.81
5. Step 5: Solve for x
   x = 7,393,711.81/3,116.42
6. Step 6: Final answer
   x = 2,372.50