Finding the Fourth Proportional to 1,617,011.72, 2,425,550.37 and 1,085,570.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617,011.72 : 2,425,550.37 = 1,085,570.72 : x
2. Step 2: Convert to fraction form
   1,617,011.72/2,425,550.37 = 1,085,570.72/x
3. Step 3: Cross multiply
   1,617,011.72x = 2,425,550.37 × 1,085,570.72
4. Step 4: Simplify right side
   1,617,011.72x = 2,633,106,461,557.17
5. Step 5: Solve for x
   x = 2,633,106,461,557.17/1,617,011.72
6. Step 6: Final answer
   x = 1,628,378.09