Finding the Fourth Proportional to 1,180.55, 1,772.24 and 693.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.55 : 1,772.24 = 693.94 : x
2. Step 2: Convert to fraction form
   1,180.55/1,772.24 = 693.94/x
3. Step 3: Cross multiply
   1,180.55x = 1,772.24 × 693.94
4. Step 4: Simplify right side
   1,180.55x = 1,229,820.33
5. Step 5: Solve for x
   x = 1,229,820.33/1,180.55
6. Step 6: Final answer
   x = 1,041.74