Finding the Fourth Proportional to 1,715.69, 2,367.53 and 1,007.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,715.69 : 2,367.53 = 1,007.56 : x
2. Step 2: Convert to fraction form
   1,715.69/2,367.53 = 1,007.56/x
3. Step 3: Cross multiply
   1,715.69x = 2,367.53 × 1,007.56
4. Step 4: Simplify right side
   1,715.69x = 2,385,428.53
5. Step 5: Solve for x
   x = 2,385,428.53/1,715.69
6. Step 6: Final answer
   x = 1,390.36