Finding the Fourth Proportional to 1,356.01, 1,871.27 and 766.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.01 : 1,871.27 = 766.51 : x
2. Step 2: Convert to fraction form
   1,356.01/1,871.27 = 766.51/x
3. Step 3: Cross multiply
   1,356.01x = 1,871.27 × 766.51
4. Step 4: Simplify right side
   1,356.01x = 1,434,347.17
5. Step 5: Solve for x
   x = 1,434,347.17/1,356.01
6. Step 6: Final answer
   x = 1,057.77