Finding the Fourth Proportional to 2,046,243.72, 3,069,602.62 and 680,139.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,046,243.72 : 3,069,602.62 = 680,139.56 : x
2. Step 2: Convert to fraction form
   2,046,243.72/3,069,602.62 = 680,139.56/x
3. Step 3: Cross multiply
   2,046,243.72x = 3,069,602.62 × 680,139.56
4. Step 4: Simplify right side
   2,046,243.72x = 2,087,758,175,341.65
5. Step 5: Solve for x
   x = 2,087,758,175,341.65/2,046,243.72
6. Step 6: Final answer
   x = 1,020,288.13