Finding the Fourth Proportional to 2,188,296.16, 3,019,896.25 and 1,208,231.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188,296.16 : 3,019,896.25 = 1,208,231.93 : x
2. Step 2: Convert to fraction form
   2,188,296.16/3,019,896.25 = 1,208,231.93/x
3. Step 3: Cross multiply
   2,188,296.16x = 3,019,896.25 × 1,208,231.93
4. Step 4: Simplify right side
   2,188,296.16x = 3,648,735,079,066.42
5. Step 5: Solve for x
   x = 3,648,735,079,066.42/2,188,296.16
6. Step 6: Final answer
   x = 1,667,386.32