Finding the Fourth Proportional to 2,105,688, 2,905,849.44 and 1,138,818.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,688 : 2,905,849.44 = 1,138,818.30 : x
2. Step 2: Convert to fraction form
   2,105,688/2,905,849.44 = 1,138,818.30/x
3. Step 3: Cross multiply
   2,105,688x = 2,905,849.44 × 1,138,818.30
4. Step 4: Simplify right side
   2,105,688x = 3,309,234,519,316.75
5. Step 5: Solve for x
   x = 3,309,234,519,316.75/2,105,688
6. Step 6: Final answer
   x = 1,571,569.25