Finding the Fourth Proportional to 2,105,453.20, 3,156,106.20 and 1,040,659.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,453.20 : 3,156,106.20 = 1,040,659.60 : x
2. Step 2: Convert to fraction form
   2,105,453.20/3,156,106.20 = 1,040,659.60/x
3. Step 3: Cross multiply
   2,105,453.20x = 3,156,106.20 × 1,040,659.60
4. Step 4: Simplify right side
   2,105,453.20x = 3,284,432,215,649.52
5. Step 5: Solve for x
   x = 3,284,432,215,649.52/2,105,453.20
6. Step 6: Final answer
   x = 1,559,964.48