Finding the Fourth Proportional to 7,007.20, 10,510.50 and 1,742.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,007.20 : 10,510.50 = 1,742.10 : x
2. Step 2: Convert to fraction form
   7,007.20/10,510.50 = 1,742.10/x
3. Step 3: Cross multiply
   7,007.20x = 10,510.50 × 1,742.10
4. Step 4: Simplify right side
   7,007.20x = 18,310,368.33
5. Step 5: Solve for x
   x = 18,310,368.33/7,007.20
6. Step 6: Final answer
   x = 2,613.08