Finding the Fourth Proportional to 2,105,696.60, 2,905,861.32 and 1,138,826.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,696.60 : 2,905,861.32 = 1,138,826.90 : x
2. Step 2: Convert to fraction form
   2,105,696.60/2,905,861.32 = 1,138,826.90/x
3. Step 3: Cross multiply
   2,105,696.60x = 2,905,861.32 × 1,138,826.90
4. Step 4: Simplify right side
   2,105,696.60x = 3,309,273,024,356.20
5. Step 5: Solve for x
   x = 3,309,273,024,356.20/2,105,696.60
6. Step 6: Final answer
   x = 1,571,581.12