Finding the Fourth Proportional to 2,814,591.78, 4,221,888.89 and 684,662.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,814,591.78 : 4,221,888.89 = 684,662.76 : x
2. Step 2: Convert to fraction form
   2,814,591.78/4,221,888.89 = 684,662.76/x
3. Step 3: Cross multiply
   2,814,591.78x = 4,221,888.89 × 684,662.76
4. Step 4: Simplify right side
   2,814,591.78x = 2,890,570,096,417.42
5. Step 5: Solve for x
   x = 2,890,570,096,417.42/2,814,591.78
6. Step 6: Final answer
   x = 1,026,994.44