Finding the Fourth Proportional to 2,890,978.04, 4,335,683.70 and 1,207,729.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890,978.04 : 4,335,683.70 = 1,207,729.40 : x
2. Step 2: Convert to fraction form
   2,890,978.04/4,335,683.70 = 1,207,729.40/x
3. Step 3: Cross multiply
   2,890,978.04x = 4,335,683.70 × 1,207,729.40
4. Step 4: Simplify right side
   2,890,978.04x = 5,236,332,673,590.78
5. Step 5: Solve for x
   x = 5,236,332,673,590.78/2,890,978.04
6. Step 6: Final answer
   x = 1,811,266.85