Finding the Fourth Proportional to 2,100.51, 3,151.41 and 868.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.51 : 3,151.41 = 868.00 : x
2. Step 2: Convert to fraction form
   2,100.51/3,151.41 = 868.00/x
3. Step 3: Cross multiply
   2,100.51x = 3,151.41 × 868.00
4. Step 4: Simplify right side
   2,100.51x = 2,735,431.95
5. Step 5: Solve for x
   x = 2,735,431.95/2,100.51
6. Step 6: Final answer
   x = 1,302.27