Finding the Fourth Proportional to 1,322.19, 1,823.72 and 972.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.19 : 1,823.72 = 972.27 : x
2. Step 2: Convert to fraction form
   1,322.19/1,823.72 = 972.27/x
3. Step 3: Cross multiply
   1,322.19x = 1,823.72 × 972.27
4. Step 4: Simplify right side
   1,322.19x = 1,773,143.38
5. Step 5: Solve for x
   x = 1,773,143.38/1,322.19
6. Step 6: Final answer
   x = 1,341.07