Finding the Fourth Proportional to 1,820,124.78, 2,511,772.20 and 1,015,308.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820,124.78 : 2,511,772.20 = 1,015,308.78 : x
2. Step 2: Convert to fraction form
   1,820,124.78/2,511,772.20 = 1,015,308.78/x
3. Step 3: Cross multiply
   1,820,124.78x = 2,511,772.20 × 1,015,308.78
4. Step 4: Simplify right side
   1,820,124.78x = 2,550,224,368,019.92
5. Step 5: Solve for x
   x = 2,550,224,368,019.92/1,820,124.78
6. Step 6: Final answer
   x = 1,401,126.12