Finding the Fourth Proportional to 1,173.79, 1,759.52 and 654.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173.79 : 1,759.52 = 654.02 : x
2. Step 2: Convert to fraction form
   1,173.79/1,759.52 = 654.02/x
3. Step 3: Cross multiply
   1,173.79x = 1,759.52 × 654.02
4. Step 4: Simplify right side
   1,173.79x = 1,150,770.60
5. Step 5: Solve for x
   x = 1,150,770.60/1,173.79
6. Step 6: Final answer
   x = 980.39