Finding the Fourth Proportional to 2,987,419.24, 4,481,131.56 and 1,280,454.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,987,419.24 : 4,481,131.56 = 1,280,454.81 : x
2. Step 2: Convert to fraction form
   2,987,419.24/4,481,131.56 = 1,280,454.81/x
3. Step 3: Cross multiply
   2,987,419.24x = 4,481,131.56 × 1,280,454.81
4. Step 4: Simplify right side
   2,987,419.24x = 5,737,886,460,244.80
5. Step 5: Solve for x
   x = 5,737,886,460,244.80/2,987,419.24
6. Step 6: Final answer
   x = 1,920,683.37