Finding the Fourth Proportional to 1,224,810.98, 1,690,275.78 and 673,498.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224,810.98 : 1,690,275.78 = 673,498.05 : x
2. Step 2: Convert to fraction form
   1,224,810.98/1,690,275.78 = 673,498.05/x
3. Step 3: Cross multiply
   1,224,810.98x = 1,690,275.78 × 673,498.05
4. Step 4: Simplify right side
   1,224,810.98x = 1,138,397,441,792.23
5. Step 5: Solve for x
   x = 1,138,397,441,792.23/1,224,810.98
6. Step 6: Final answer
   x = 929,447.45