Finding the Fourth Proportional to 2,227,641.72, 3,074,148.54 and 1,209,046.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227,641.72 : 3,074,148.54 = 1,209,046.60 : x
2. Step 2: Convert to fraction form
   2,227,641.72/3,074,148.54 = 1,209,046.60/x
3. Step 3: Cross multiply
   2,227,641.72x = 3,074,148.54 × 1,209,046.60
4. Step 4: Simplify right side
   2,227,641.72x = 3,716,788,840,181.96
5. Step 5: Solve for x
   x = 3,716,788,840,181.96/2,227,641.72
6. Step 6: Final answer
   x = 1,668,485.92