Finding the Fourth Proportional to 2,153,124, 3,229,578.62 and 805,187.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153,124 : 3,229,578.62 = 805,187.50 : x
2. Step 2: Convert to fraction form
   2,153,124/3,229,578.62 = 805,187.50/x
3. Step 3: Cross multiply
   2,153,124x = 3,229,578.62 × 805,187.50
4. Step 4: Simplify right side
   2,153,124x = 2,600,416,335,091.25
5. Step 5: Solve for x
   x = 2,600,416,335,091.25/2,153,124
6. Step 6: Final answer
   x = 1,207,741.09