Finding the Fourth Proportional to 1,196.58, 1,792.38 and 761.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.58 : 1,792.38 = 761.58 : x
2. Step 2: Convert to fraction form
   1,196.58/1,792.38 = 761.58/x
3. Step 3: Cross multiply
   1,196.58x = 1,792.38 × 761.58
4. Step 4: Simplify right side
   1,196.58x = 1,365,040.76
5. Step 5: Solve for x
   x = 1,365,040.76/1,196.58
6. Step 6: Final answer
   x = 1,140.79