Finding the Fourth Proportional to 1,055,592.72, 1,456,873.60 and 668,443.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055,592.72 : 1,456,873.60 = 668,443.49 : x
2. Step 2: Convert to fraction form
   1,055,592.72/1,456,873.60 = 668,443.49/x
3. Step 3: Cross multiply
   1,055,592.72x = 1,456,873.60 × 668,443.49
4. Step 4: Simplify right side
   1,055,592.72x = 973,837,666,388.50
5. Step 5: Solve for x
   x = 973,837,666,388.50/1,055,592.72
6. Step 6: Final answer
   x = 922,550.57