Finding the Fourth Proportional to 2,637,682.89, 3,956,450.52 and 840,674.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637,682.89 : 3,956,450.52 = 840,674.19 : x
2. Step 2: Convert to fraction form
   2,637,682.89/3,956,450.52 = 840,674.19/x
3. Step 3: Cross multiply
   2,637,682.89x = 3,956,450.52 × 840,674.19
4. Step 4: Simplify right side
   2,637,682.89x = 3,326,085,849,436.50
5. Step 5: Solve for x
   x = 3,326,085,849,436.50/2,637,682.89
6. Step 6: Final answer
   x = 1,260,987.77