Finding the Fourth Proportional to 2,308,972.88, 3,186,524.04 and 1,290,458.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308,972.88 : 3,186,524.04 = 1,290,458.96 : x
2. Step 2: Convert to fraction form
   2,308,972.88/3,186,524.04 = 1,290,458.96/x
3. Step 3: Cross multiply
   2,308,972.88x = 3,186,524.04 × 1,290,458.96
4. Step 4: Simplify right side
   2,308,972.88x = 4,112,078,498,673.40
5. Step 5: Solve for x
   x = 4,112,078,498,673.40/2,308,972.88
6. Step 6: Final answer
   x = 1,780,912.43