Finding the Fourth Proportional to 2,061.81, 3,090.86 and 762.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.81 : 3,090.86 = 762.37 : x
2. Step 2: Convert to fraction form
   2,061.81/3,090.86 = 762.37/x
3. Step 3: Cross multiply
   2,061.81x = 3,090.86 × 762.37
4. Step 4: Simplify right side
   2,061.81x = 2,356,375.13
5. Step 5: Solve for x
   x = 2,356,375.13/2,061.81
6. Step 6: Final answer
   x = 1,142.87