Finding the Fourth Proportional to 1,040,588.01, 1,561,030.83 and 320,990.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040,588.01 : 1,561,030.83 = 320,990.49 : x
2. Step 2: Convert to fraction form
   1,040,588.01/1,561,030.83 = 320,990.49/x
3. Step 3: Cross multiply
   1,040,588.01x = 1,561,030.83 × 320,990.49
4. Step 4: Simplify right side
   1,040,588.01x = 501,076,051,026.81
5. Step 5: Solve for x
   x = 501,076,051,026.81/1,040,588.01
6. Step 6: Final answer
   x = 481,531.64