Finding the Fourth Proportional to 1,411.00, 1,947.36 and 851.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.00 : 1,947.36 = 851.78 : x
2. Step 2: Convert to fraction form
   1,411.00/1,947.36 = 851.78/x
3. Step 3: Cross multiply
   1,411.00x = 1,947.36 × 851.78
4. Step 4: Simplify right side
   1,411.00x = 1,658,718.04
5. Step 5: Solve for x
   x = 1,658,718.04/1,411.00
6. Step 6: Final answer
   x = 1,175.57