Finding the Fourth Proportional to 2,078,433.70, 3,117,002.55 and 816,648.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078,433.70 : 3,117,002.55 = 816,648.10 : x
2. Step 2: Convert to fraction form
   2,078,433.70/3,117,002.55 = 816,648.10/x
3. Step 3: Cross multiply
   2,078,433.70x = 3,117,002.55 × 816,648.10
4. Step 4: Simplify right side
   2,078,433.70x = 2,545,494,210,152.65
5. Step 5: Solve for x
   x = 2,545,494,210,152.65/2,078,433.70
6. Step 6: Final answer
   x = 1,224,717.54