Finding the Fourth Proportional to 1,096,693.72, 1,643,918.98 and 422,510.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096,693.72 : 1,643,918.98 = 422,510.87 : x
2. Step 2: Convert to fraction form
   1,096,693.72/1,643,918.98 = 422,510.87/x
3. Step 3: Cross multiply
   1,096,693.72x = 1,643,918.98 × 422,510.87
4. Step 4: Simplify right side
   1,096,693.72x = 694,573,638,449.31
5. Step 5: Solve for x
   x = 694,573,638,449.31/1,096,693.72
6. Step 6: Final answer
   x = 633,334.20