Finding the Fourth Proportional to 2,105,710.07, 2,905,879.86 and 1,138,840.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,710.07 : 2,905,879.86 = 1,138,840.36 : x
2. Step 2: Convert to fraction form
   2,105,710.07/2,905,879.86 = 1,138,840.36/x
3. Step 3: Cross multiply
   2,105,710.07x = 2,905,879.86 × 1,138,840.36
4. Step 4: Simplify right side
   2,105,710.07x = 3,309,333,258,614.45
5. Step 5: Solve for x
   x = 3,309,333,258,614.45/2,105,710.07
6. Step 6: Final answer
   x = 1,571,599.67