Finding the Fourth Proportional to 2,157,078.78, 2,976,831.03 and 1,190,271.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,078.78 : 2,976,831.03 = 1,190,271.33 : x
2. Step 2: Convert to fraction form
   2,157,078.78/2,976,831.03 = 1,190,271.33/x
3. Step 3: Cross multiply
   2,157,078.78x = 2,976,831.03 × 1,190,271.33
4. Step 4: Simplify right side
   2,157,078.78x = 3,543,236,629,263.37
5. Step 5: Solve for x
   x = 3,543,236,629,263.37/2,157,078.78
6. Step 6: Final answer
   x = 1,642,608.82