Finding the Fourth Proportional to 2,128,661.78, 2,937,561.39 and 1,161,813.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,661.78 : 2,937,561.39 = 1,161,813.38 : x
2. Step 2: Convert to fraction form
   2,128,661.78/2,937,561.39 = 1,161,813.38/x
3. Step 3: Cross multiply
   2,128,661.78x = 2,937,561.39 × 1,161,813.38
4. Step 4: Simplify right side
   2,128,661.78x = 3,412,898,112,785.59
5. Step 5: Solve for x
   x = 3,412,898,112,785.59/2,128,661.78
6. Step 6: Final answer
   x = 1,603,306.90