Finding the Fourth Proportional to 2,078,679.36, 3,118,105.76 and 658,704

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078,679.36 : 3,118,105.76 = 658,704 : x
2. Step 2: Convert to fraction form
   2,078,679.36/3,118,105.76 = 658,704/x
3. Step 3: Cross multiply
   2,078,679.36x = 3,118,105.76 × 658,704
4. Step 4: Simplify right side
   2,078,679.36x = 2,053,908,736,535.04
5. Step 5: Solve for x
   x = 2,053,908,736,535.04/2,078,679.36
6. Step 6: Final answer
   x = 988,083.48