Finding the Fourth Proportional to 1,024,111.74, 1,536,365.81 and 392,976.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,024,111.74 : 1,536,365.81 = 392,976.48 : x
2. Step 2: Convert to fraction form
   1,024,111.74/1,536,365.81 = 392,976.48/x
3. Step 3: Cross multiply
   1,024,111.74x = 1,536,365.81 × 392,976.48
4. Step 4: Simplify right side
   1,024,111.74x = 603,755,626,041.27
5. Step 5: Solve for x
   x = 603,755,626,041.27/1,024,111.74
6. Step 6: Final answer
   x = 589,540.77