Finding the Fourth Proportional to 1,123,659.33, 1,685,538.21 and 325,021.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,659.33 : 1,685,538.21 = 325,021.61 : x
2. Step 2: Convert to fraction form
   1,123,659.33/1,685,538.21 = 325,021.61/x
3. Step 3: Cross multiply
   1,123,659.33x = 1,685,538.21 × 325,021.61
4. Step 4: Simplify right side
   1,123,659.33x = 547,836,334,303.03
5. Step 5: Solve for x
   x = 547,836,334,303.03/1,123,659.33
6. Step 6: Final answer
   x = 487,546.64