Finding the Fourth Proportional to 2,061.56, 3,090.48 and 762.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.56 : 3,090.48 = 762.12 : x
2. Step 2: Convert to fraction form
   2,061.56/3,090.48 = 762.12/x
3. Step 3: Cross multiply
   2,061.56x = 3,090.48 × 762.12
4. Step 4: Simplify right side
   2,061.56x = 2,355,316.62
5. Step 5: Solve for x
   x = 2,355,316.62/2,061.56
6. Step 6: Final answer
   x = 1,142.49