Finding the Fourth Proportional to 1,715.90, 2,574.27 and 935.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,715.90 : 2,574.27 = 935.69 : x
2. Step 2: Convert to fraction form
   1,715.90/2,574.27 = 935.69/x
3. Step 3: Cross multiply
   1,715.90x = 2,574.27 × 935.69
4. Step 4: Simplify right side
   1,715.90x = 2,408,705.82
5. Step 5: Solve for x
   x = 2,408,705.82/1,715.90
6. Step 6: Final answer
   x = 1,403.76