Finding the Fourth Proportional to 2,219,404.54, 3,062,778.26 and 1,200,809.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219,404.54 : 3,062,778.26 = 1,200,809.28 : x
2. Step 2: Convert to fraction form
   2,219,404.54/3,062,778.26 = 1,200,809.28/x
3. Step 3: Cross multiply
   2,219,404.54x = 3,062,778.26 × 1,200,809.28
4. Step 4: Simplify right side
   2,219,404.54x = 3,677,812,557,190.25
5. Step 5: Solve for x
   x = 3,677,812,557,190.25/2,219,404.54
6. Step 6: Final answer
   x = 1,657,116.80