Finding the Fourth Proportional to 2,079,284.69, 3,119,222.62 and 640,088.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079,284.69 : 3,119,222.62 = 640,088.10 : x
2. Step 2: Convert to fraction form
   2,079,284.69/3,119,222.62 = 640,088.10/x
3. Step 3: Cross multiply
   2,079,284.69x = 3,119,222.62 × 640,088.10
4. Step 4: Simplify right side
   2,079,284.69x = 1,996,577,280,312.82
5. Step 5: Solve for x
   x = 1,996,577,280,312.82/2,079,284.69
6. Step 6: Final answer
   x = 960,223.14