Finding the Fourth Proportional to 1,226,785.50, 1,692,945.77 and 682,920.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,226,785.50 : 1,692,945.77 = 682,920.32 : x
2. Step 2: Convert to fraction form
   1,226,785.50/1,692,945.77 = 682,920.32/x
3. Step 3: Cross multiply
   1,226,785.50x = 1,692,945.77 × 682,920.32
4. Step 4: Simplify right side
   1,226,785.50x = 1,156,147,055,111.72
5. Step 5: Solve for x
   x = 1,156,147,055,111.72/1,226,785.50
6. Step 6: Final answer
   x = 942,419.89