Finding the Fourth Proportional to 1,221,667.02, 1,685,843.37 and 677,797.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,667.02 : 1,685,843.37 = 677,797.02 : x
2. Step 2: Convert to fraction form
   1,221,667.02/1,685,843.37 = 677,797.02/x
3. Step 3: Cross multiply
   1,221,667.02x = 1,685,843.37 × 677,797.02
4. Step 4: Simplify right side
   1,221,667.02x = 1,142,659,612,372.76
5. Step 5: Solve for x
   x = 1,142,659,612,372.76/1,221,667.02
6. Step 6: Final answer
   x = 935,328.20