Finding the Fourth Proportional to 2,129,383, 3,192,499.86 and 1,287,747.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,383 : 3,192,499.86 = 1,287,747.64 : x
2. Step 2: Convert to fraction form
   2,129,383/3,192,499.86 = 1,287,747.64/x
3. Step 3: Cross multiply
   2,129,383x = 3,192,499.86 × 1,287,747.64
4. Step 4: Simplify right side
   2,129,383x = 4,111,134,160,415.33
5. Step 5: Solve for x
   x = 4,111,134,160,415.33/2,129,383
6. Step 6: Final answer
   x = 1,930,669.19