Finding the Fourth Proportional to 2,105,426.64, 2,905,489.98 and 1,138,556.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,426.64 : 2,905,489.98 = 1,138,556.86 : x
2. Step 2: Convert to fraction form
   2,105,426.64/2,905,489.98 = 1,138,556.86/x
3. Step 3: Cross multiply
   2,105,426.64x = 2,905,489.98 × 1,138,556.86
4. Step 4: Simplify right side
   2,105,426.64x = 3,308,065,548,390.26
5. Step 5: Solve for x
   x = 3,308,065,548,390.26/2,105,426.64
6. Step 6: Final answer
   x = 1,571,209.12