Finding the Fourth Proportional to 1,224,662.69, 1,837,019.34 and 445,648.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224,662.69 : 1,837,019.34 = 445,648.86 : x
2. Step 2: Convert to fraction form
   1,224,662.69/1,837,019.34 = 445,648.86/x
3. Step 3: Cross multiply
   1,224,662.69x = 1,837,019.34 × 445,648.86
4. Step 4: Simplify right side
   1,224,662.69x = 818,665,574,668.95
5. Step 5: Solve for x
   x = 818,665,574,668.95/1,224,662.69
6. Step 6: Final answer
   x = 668,482.50