Finding the Fourth Proportional to 2,109,434.63, 2,910,868.66 and 1,238,304.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109,434.63 : 2,910,868.66 = 1,238,304.69 : x
2. Step 2: Convert to fraction form
   2,109,434.63/2,910,868.66 = 1,238,304.69/x
3. Step 3: Cross multiply
   2,109,434.63x = 2,910,868.66 × 1,238,304.69
4. Step 4: Simplify right side
   2,109,434.63x = 3,604,542,310,556.25
5. Step 5: Solve for x
   x = 3,604,542,310,556.25/2,109,434.63
6. Step 6: Final answer
   x = 1,708,771.76