Finding the Fourth Proportional to 2,131,830.69, 2,942,226.36 and 1,357,214.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131,830.69 : 2,942,226.36 = 1,357,214.07 : x
2. Step 2: Convert to fraction form
   2,131,830.69/2,942,226.36 = 1,357,214.07/x
3. Step 3: Cross multiply
   2,131,830.69x = 2,942,226.36 × 1,357,214.07
4. Step 4: Simplify right side
   2,131,830.69x = 3,993,231,012,916.89
5. Step 5: Solve for x
   x = 3,993,231,012,916.89/2,131,830.69
6. Step 6: Final answer
   x = 1,873,146.41