Finding the Fourth Proportional to 2,108,017.56, 2,909,408.70 and 1,292,670

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108,017.56 : 2,909,408.70 = 1,292,670 : x
2. Step 2: Convert to fraction form
   2,108,017.56/2,909,408.70 = 1,292,670/x
3. Step 3: Cross multiply
   2,108,017.56x = 2,909,408.70 × 1,292,670
4. Step 4: Simplify right side
   2,108,017.56x = 3,760,905,344,229
5. Step 5: Solve for x
   x = 3,760,905,344,229/2,108,017.56
6. Step 6: Final answer
   x = 1,784,095.83