Finding the Fourth Proportional to 2,253,523.42, 3,109,865.46 and 1,221,042.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253,523.42 : 3,109,865.46 = 1,221,042.40 : x
2. Step 2: Convert to fraction form
   2,253,523.42/3,109,865.46 = 1,221,042.40/x
3. Step 3: Cross multiply
   2,253,523.42x = 3,109,865.46 × 1,221,042.40
4. Step 4: Simplify right side
   2,253,523.42x = 3,797,277,584,955.50
5. Step 5: Solve for x
   x = 3,797,277,584,955.50/2,253,523.42
6. Step 6: Final answer
   x = 1,685,040.21