Finding the Fourth Proportional to 2,068,287.78, 3,102,432.57 and 648,454.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068,287.78 : 3,102,432.57 = 648,454.56 : x
2. Step 2: Convert to fraction form
   2,068,287.78/3,102,432.57 = 648,454.56/x
3. Step 3: Cross multiply
   2,068,287.78x = 3,102,432.57 × 648,454.56
4. Step 4: Simplify right side
   2,068,287.78x = 2,011,786,547,109.02
5. Step 5: Solve for x
   x = 2,011,786,547,109.02/2,068,287.78
6. Step 6: Final answer
   x = 972,682.12