Finding the Fourth Proportional to 2,078,402, 3,117,693.84 and 658,562.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078,402 : 3,117,693.84 = 658,562.72 : x
2. Step 2: Convert to fraction form
   2,078,402/3,117,693.84 = 658,562.72/x
3. Step 3: Cross multiply
   2,078,402x = 3,117,693.84 × 658,562.72
4. Step 4: Simplify right side
   2,078,402x = 2,053,196,935,397.64
5. Step 5: Solve for x
   x = 2,053,196,935,397.64/2,078,402
6. Step 6: Final answer
   x = 987,872.86