Finding the Fourth Proportional to 1,870,674.78, 2,579,809.59 and 1,225,860.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870,674.78 : 2,579,809.59 = 1,225,860.78 : x
2. Step 2: Convert to fraction form
   1,870,674.78/2,579,809.59 = 1,225,860.78/x
3. Step 3: Cross multiply
   1,870,674.78x = 2,579,809.59 × 1,225,860.78
4. Step 4: Simplify right side
   1,870,674.78x = 3,162,487,396,248.88
5. Step 5: Solve for x
   x = 3,162,487,396,248.88/1,870,674.78
6. Step 6: Final answer
   x = 1,690,559.70