Finding the Fourth Proportional to 1,088,558.72, 1,632,868.80 and 300,590.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,088,558.72 : 1,632,868.80 = 300,590.72 : x
2. Step 2: Convert to fraction form
   1,088,558.72/1,632,868.80 = 300,590.72/x
3. Step 3: Cross multiply
   1,088,558.72x = 1,632,868.80 × 300,590.72
4. Step 4: Simplify right side
   1,088,558.72x = 490,825,208,257.54
5. Step 5: Solve for x
   x = 490,825,208,257.54/1,088,558.72
6. Step 6: Final answer
   x = 450,894.56