Finding the Fourth Proportional to 1,182.84, 1,634.61 and 972.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.84 : 1,634.61 = 972.69 : x
2. Step 2: Convert to fraction form
   1,182.84/1,634.61 = 972.69/x
3. Step 3: Cross multiply
   1,182.84x = 1,634.61 × 972.69
4. Step 4: Simplify right side
   1,182.84x = 1,589,968.80
5. Step 5: Solve for x
   x = 1,589,968.80/1,182.84
6. Step 6: Final answer
   x = 1,344.20