Finding the Fourth Proportional to 1,700.15, 2,543.78 and 1,007.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,700.15 : 2,543.78 = 1,007.19 : x
2. Step 2: Convert to fraction form
   1,700.15/2,543.78 = 1,007.19/x
3. Step 3: Cross multiply
   1,700.15x = 2,543.78 × 1,007.19
4. Step 4: Simplify right side
   1,700.15x = 2,562,069.78
5. Step 5: Solve for x
   x = 2,562,069.78/1,700.15
6. Step 6: Final answer
   x = 1,506.97