Finding the Fourth Proportional to 1,410.87, 1,946.72 and 886.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.87 : 1,946.72 = 886.59 : x
2. Step 2: Convert to fraction form
   1,410.87/1,946.72 = 886.59/x
3. Step 3: Cross multiply
   1,410.87x = 1,946.72 × 886.59
4. Step 4: Simplify right side
   1,410.87x = 1,725,938.05
5. Step 5: Solve for x
   x = 1,725,938.05/1,410.87
6. Step 6: Final answer
   x = 1,223.31