Finding the Fourth Proportional to 1,322,238.72, 1,824,680.88 and 718,626.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322,238.72 : 1,824,680.88 = 718,626.72 : x
2. Step 2: Convert to fraction form
   1,322,238.72/1,824,680.88 = 718,626.72/x
3. Step 3: Cross multiply
   1,322,238.72x = 1,824,680.88 × 718,626.72
4. Step 4: Simplify right side
   1,322,238.72x = 1,311,264,435,841.11
5. Step 5: Solve for x
   x = 1,311,264,435,841.11/1,322,238.72
6. Step 6: Final answer
   x = 991,700.22