Finding the Fourth Proportional to 772,162.29, 1,158,192.61 and 266,730.53

Step by Step Solution

1. Step 1: Write the proportion equation
   772,162.29 : 1,158,192.61 = 266,730.53 : x
2. Step 2: Convert to fraction form
   772,162.29/1,158,192.61 = 266,730.53/x
3. Step 3: Cross multiply
   772,162.29x = 1,158,192.61 × 266,730.53
4. Step 4: Simplify right side
   772,162.29x = 308,925,322,249.59
5. Step 5: Solve for x
   x = 308,925,322,249.59/772,162.29
6. Step 6: Final answer
   x = 400,078.23