Finding the Fourth Proportional to 2,143,397.49, 3,215,059.78 and 1,005,895.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,397.49 : 3,215,059.78 = 1,005,895.05 : x
2. Step 2: Convert to fraction form
   2,143,397.49/3,215,059.78 = 1,005,895.05/x
3. Step 3: Cross multiply
   2,143,397.49x = 3,215,059.78 × 1,005,895.05
4. Step 4: Simplify right side
   2,143,397.49x = 3,234,012,718,156.09
5. Step 5: Solve for x
   x = 3,234,012,718,156.09/2,143,397.49
6. Step 6: Final answer
   x = 1,508,825.47