Finding the Fourth Proportional to 2,253,561.22, 3,109,909.36 and 1,221,097.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253,561.22 : 3,109,909.36 = 1,221,097.18 : x
2. Step 2: Convert to fraction form
   2,253,561.22/3,109,909.36 = 1,221,097.18/x
3. Step 3: Cross multiply
   2,253,561.22x = 3,109,909.36 × 1,221,097.18
4. Step 4: Simplify right side
   2,253,561.22x = 3,797,501,549,551.60
5. Step 5: Solve for x
   x = 3,797,501,549,551.60/2,253,561.22
6. Step 6: Final answer
   x = 1,685,111.33