Finding the Fourth Proportional to 2,862,491.69, 4,293,898.38 and 917,389.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,862,491.69 : 4,293,898.38 = 917,389.54 : x
2. Step 2: Convert to fraction form
   2,862,491.69/4,293,898.38 = 917,389.54/x
3. Step 3: Cross multiply
   2,862,491.69x = 4,293,898.38 × 917,389.54
4. Step 4: Simplify right side
   2,862,491.69x = 3,939,177,465,002.32
5. Step 5: Solve for x
   x = 3,939,177,465,002.32/2,862,491.69
6. Step 6: Final answer
   x = 1,376,135.86