Finding the Fourth Proportional to 2,661,600.53, 3,990,942.79 and 1,310,792.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661,600.53 : 3,990,942.79 = 1,310,792.69 : x
2. Step 2: Convert to fraction form
   2,661,600.53/3,990,942.79 = 1,310,792.69/x
3. Step 3: Cross multiply
   2,661,600.53x = 3,990,942.79 × 1,310,792.69
4. Step 4: Simplify right side
   2,661,600.53x = 5,231,298,612,108.51
5. Step 5: Solve for x
   x = 5,231,298,612,108.51/2,661,600.53
6. Step 6: Final answer
   x = 1,965,470.99