Finding the Fourth Proportional to 2,074,321.25, 3,112,936.29 and 859,916.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074,321.25 : 3,112,936.29 = 859,916.60 : x
2. Step 2: Convert to fraction form
   2,074,321.25/3,112,936.29 = 859,916.60/x
3. Step 3: Cross multiply
   2,074,321.25x = 3,112,936.29 × 859,916.60
4. Step 4: Simplify right side
   2,074,321.25x = 2,676,865,574,948.73
5. Step 5: Solve for x
   x = 2,676,865,574,948.73/2,074,321.25
6. Step 6: Final answer
   x = 1,290,477.83