Finding the Fourth Proportional to 2,227,881.72, 3,074,480.22 and 1,209,287.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227,881.72 : 3,074,480.22 = 1,209,287.40 : x
2. Step 2: Convert to fraction form
   2,227,881.72/3,074,480.22 = 1,209,287.40/x
3. Step 3: Cross multiply
   2,227,881.72x = 3,074,480.22 × 1,209,287.40
4. Step 4: Simplify right side
   2,227,881.72x = 3,717,930,191,595.23
5. Step 5: Solve for x
   x = 3,717,930,191,595.23/2,227,881.72
6. Step 6: Final answer
   x = 1,668,818.48