Finding the Fourth Proportional to 2,207,909.48, 3,046,468.55 and 1,289,961.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,207,909.48 : 3,046,468.55 = 1,289,961.33 : x
2. Step 2: Convert to fraction form
   2,207,909.48/3,046,468.55 = 1,289,961.33/x
3. Step 3: Cross multiply
   2,207,909.48x = 3,046,468.55 × 1,289,961.33
4. Step 4: Simplify right side
   2,207,909.48x = 3,929,826,616,111.37
5. Step 5: Solve for x
   x = 3,929,826,616,111.37/2,207,909.48
6. Step 6: Final answer
   x = 1,779,885.75