Finding the Fourth Proportional to 1,137.88, 1,570.78 and 695.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137.88 : 1,570.78 = 695.94 : x
2. Step 2: Convert to fraction form
   1,137.88/1,570.78 = 695.94/x
3. Step 3: Cross multiply
   1,137.88x = 1,570.78 × 695.94
4. Step 4: Simplify right side
   1,137.88x = 1,093,168.63
5. Step 5: Solve for x
   x = 1,093,168.63/1,137.88
6. Step 6: Final answer
   x = 960.71