Finding the Fourth Proportional to 1,088,121.83, 1,631,549.59 and 800,105.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,088,121.83 : 1,631,549.59 = 800,105.72 : x
2. Step 2: Convert to fraction form
   1,088,121.83/1,631,549.59 = 800,105.72/x
3. Step 3: Cross multiply
   1,088,121.83x = 1,631,549.59 × 800,105.72
4. Step 4: Simplify right side
   1,088,121.83x = 1,305,412,159,422.65
5. Step 5: Solve for x
   x = 1,305,412,159,422.65/1,088,121.83
6. Step 6: Final answer
   x = 1,199,693.02