Finding the Fourth Proportional to 1,908,911.62, 2,865,442.29 and 772,456.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908,911.62 : 2,865,442.29 = 772,456.15 : x
2. Step 2: Convert to fraction form
   1,908,911.62/2,865,442.29 = 772,456.15/x
3. Step 3: Cross multiply
   1,908,911.62x = 2,865,442.29 × 772,456.15
4. Step 4: Simplify right side
   1,908,911.62x = 2,213,428,519,380.58
5. Step 5: Solve for x
   x = 2,213,428,519,380.58/1,908,911.62
6. Step 6: Final answer
   x = 1,159,523.83