Finding the Fourth Proportional to 2,113,906.31, 3,170,831.78 and 516,483.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113,906.31 : 3,170,831.78 = 516,483.23 : x
2. Step 2: Convert to fraction form
   2,113,906.31/3,170,831.78 = 516,483.23/x
3. Step 3: Cross multiply
   2,113,906.31x = 3,170,831.78 × 516,483.23
4. Step 4: Simplify right side
   2,113,906.31x = 1,637,681,439,521.05
5. Step 5: Solve for x
   x = 1,637,681,439,521.05/2,113,906.31
6. Step 6: Final answer
   x = 774,718.08