Finding the Fourth Proportional to 1,224,811.98, 1,690,277.16 and 673,499.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224,811.98 : 1,690,277.16 = 673,499.05 : x
2. Step 2: Convert to fraction form
   1,224,811.98/1,690,277.16 = 673,499.05/x
3. Step 3: Cross multiply
   1,224,811.98x = 1,690,277.16 × 673,499.05
4. Step 4: Simplify right side
   1,224,811.98x = 1,138,400,061,496.70
5. Step 5: Solve for x
   x = 1,138,400,061,496.70/1,224,811.98
6. Step 6: Final answer
   x = 929,448.83