Finding the Fourth Proportional to 2,638,365.40, 3,958,196.10 and 745,082.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638,365.40 : 3,958,196.10 = 745,082.20 : x
2. Step 2: Convert to fraction form
   2,638,365.40/3,958,196.10 = 745,082.20/x
3. Step 3: Cross multiply
   2,638,365.40x = 3,958,196.10 × 745,082.20
4. Step 4: Simplify right side
   2,638,365.40x = 2,949,181,458,219.42
5. Step 5: Solve for x
   x = 2,949,181,458,219.42/2,638,365.40
6. Step 6: Final answer
   x = 1,117,806.30