Finding the Fourth Proportional to 1,683.77, 2,521.00 and 860.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,683.77 : 2,521.00 = 860.27 : x
2. Step 2: Convert to fraction form
   1,683.77/2,521.00 = 860.27/x
3. Step 3: Cross multiply
   1,683.77x = 2,521.00 × 860.27
4. Step 4: Simplify right side
   1,683.77x = 2,168,736.37
5. Step 5: Solve for x
   x = 2,168,736.37/1,683.77
6. Step 6: Final answer
   x = 1,288.02