Finding the Fourth Proportional to 2,258,409.52, 3,116,667.54 and 1,278,270.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258,409.52 : 3,116,667.54 = 1,278,270.64 : x
2. Step 2: Convert to fraction form
   2,258,409.52/3,116,667.54 = 1,278,270.64/x
3. Step 3: Cross multiply
   2,258,409.52x = 3,116,667.54 × 1,278,270.64
4. Step 4: Simplify right side
   2,258,409.52x = 3,983,944,611,023.03
5. Step 5: Solve for x
   x = 3,983,944,611,023.03/2,258,409.52
6. Step 6: Final answer
   x = 1,764,048.80