Finding the Fourth Proportional to 1,410.20, 1,947.30 and 887.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.20 : 1,947.30 = 887.16 : x
2. Step 2: Convert to fraction form
   1,410.20/1,947.30 = 887.16/x
3. Step 3: Cross multiply
   1,410.20x = 1,947.30 × 887.16
4. Step 4: Simplify right side
   1,410.20x = 1,727,566.67
5. Step 5: Solve for x
   x = 1,727,566.67/1,410.20
6. Step 6: Final answer
   x = 1,225.05