Finding the Fourth Proportional to 2,986,288.25, 4,479,448.78 and 742,426.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,986,288.25 : 4,479,448.78 = 742,426.25 : x
2. Step 2: Convert to fraction form
   2,986,288.25/4,479,448.78 = 742,426.25/x
3. Step 3: Cross multiply
   2,986,288.25x = 4,479,448.78 × 742,426.25
4. Step 4: Simplify right side
   2,986,288.25x = 3,325,660,359,802.48
5. Step 5: Solve for x
   x = 3,325,660,359,802.48/2,986,288.25
6. Step 6: Final answer
   x = 1,113,643.45