Finding the Fourth Proportional to 2,165,667.57, 2,988,584.98 and 1,198,777.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165,667.57 : 2,988,584.98 = 1,198,777.05 : x
2. Step 2: Convert to fraction form
   2,165,667.57/2,988,584.98 = 1,198,777.05/x
3. Step 3: Cross multiply
   2,165,667.57x = 2,988,584.98 × 1,198,777.05
4. Step 4: Simplify right side
   2,165,667.57x = 3,582,647,083,001.77
5. Step 5: Solve for x
   x = 3,582,647,083,001.77/2,165,667.57
6. Step 6: Final answer
   x = 1,654,292.25