Finding the Fourth Proportional to 2,086.77, 2,880.78 and 1,301.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.77 : 2,880.78 = 1,301.07 : x
2. Step 2: Convert to fraction form
   2,086.77/2,880.78 = 1,301.07/x
3. Step 3: Cross multiply
   2,086.77x = 2,880.78 × 1,301.07
4. Step 4: Simplify right side
   2,086.77x = 3,748,096.43
5. Step 5: Solve for x
   x = 3,748,096.43/2,086.77
6. Step 6: Final answer
   x = 1,796.12