Finding the Fourth Proportional to 2,438,158.34, 3,657,478.10 and 840,511.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,438,158.34 : 3,657,478.10 = 840,511.10 : x
2. Step 2: Convert to fraction form
   2,438,158.34/3,657,478.10 = 840,511.10/x
3. Step 3: Cross multiply
   2,438,158.34x = 3,657,478.10 × 840,511.10
4. Step 4: Simplify right side
   2,438,158.34x = 3,074,150,945,998.05
5. Step 5: Solve for x
   x = 3,074,150,945,998.05/2,438,158.34
6. Step 6: Final answer
   x = 1,260,849.59