Finding the Fourth Proportional to 2,066.31, 3,099.47 and 527.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.31 : 3,099.47 = 527.31 : x
2. Step 2: Convert to fraction form
   2,066.31/3,099.47 = 527.31/x
3. Step 3: Cross multiply
   2,066.31x = 3,099.47 × 527.31
4. Step 4: Simplify right side
   2,066.31x = 1,634,389.27
5. Step 5: Solve for x
   x = 1,634,389.27/2,066.31
6. Step 6: Final answer
   x = 790.97