Finding the Fourth Proportional to 1,900,729.49, 2,851,519.76 and 638,522.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900,729.49 : 2,851,519.76 = 638,522.69 : x
2. Step 2: Convert to fraction form
   1,900,729.49/2,851,519.76 = 638,522.69/x
3. Step 3: Cross multiply
   1,900,729.49x = 2,851,519.76 × 638,522.69
4. Step 4: Simplify right side
   1,900,729.49x = 1,820,760,064,550.74
5. Step 5: Solve for x
   x = 1,820,760,064,550.74/1,900,729.49
6. Step 6: Final answer
   x = 957,926.98