Finding the Fourth Proportional to 1,618,061.92, 2,428,176.38 and 671,433.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618,061.92 : 2,428,176.38 = 671,433.54 : x
2. Step 2: Convert to fraction form
   1,618,061.92/2,428,176.38 = 671,433.54/x
3. Step 3: Cross multiply
   1,618,061.92x = 2,428,176.38 × 671,433.54
4. Step 4: Simplify right side
   1,618,061.92x = 1,630,359,062,567.79
5. Step 5: Solve for x
   x = 1,630,359,062,567.79/1,618,061.92
6. Step 6: Final answer
   x = 1,007,599.92