Finding the Fourth Proportional to 2,165,168.64, 2,987,910.72 and 1,198,300.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165,168.64 : 2,987,910.72 = 1,198,300.80 : x
2. Step 2: Convert to fraction form
   2,165,168.64/2,987,910.72 = 1,198,300.80/x
3. Step 3: Cross multiply
   2,165,168.64x = 2,987,910.72 × 1,198,300.80
4. Step 4: Simplify right side
   2,165,168.64x = 3,580,415,806,104.58
5. Step 5: Solve for x
   x = 3,580,415,806,104.58/2,165,168.64
6. Step 6: Final answer
   x = 1,653,642.93