Finding the Fourth Proportional to 2,064,588.80, 3,096,881.76 and 644,766.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064,588.80 : 3,096,881.76 = 644,766.56 : x
2. Step 2: Convert to fraction form
   2,064,588.80/3,096,881.76 = 644,766.56/x
3. Step 3: Cross multiply
   2,064,588.80x = 3,096,881.76 × 644,766.56
4. Step 4: Simplify right side
   2,064,588.80x = 1,996,765,799,121.95
5. Step 5: Solve for x
   x = 1,996,765,799,121.95/2,064,588.80
6. Step 6: Final answer
   x = 967,149.39