Finding the Fourth Proportional to 2,208,869.70, 3,312,935.50 and 611,594.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208,869.70 : 3,312,935.50 = 611,594.25 : x
2. Step 2: Convert to fraction form
   2,208,869.70/3,312,935.50 = 611,594.25/x
3. Step 3: Cross multiply
   2,208,869.70x = 3,312,935.50 × 611,594.25
4. Step 4: Simplify right side
   2,208,869.70x = 2,026,172,300,891.89
5. Step 5: Solve for x
   x = 2,026,172,300,891.89/2,208,869.70
6. Step 6: Final answer
   x = 917,289.19