Finding the Fourth Proportional to 899.60, 1,341.72 and 884.00

Step by Step Solution

1. Step 1: Write the proportion equation
   899.60 : 1,341.72 = 884.00 : x
2. Step 2: Convert to fraction form
   899.60/1,341.72 = 884.00/x
3. Step 3: Cross multiply
   899.60x = 1,341.72 × 884.00
4. Step 4: Simplify right side
   899.60x = 1,186,083.83
5. Step 5: Solve for x
   x = 1,186,083.83/899.60
6. Step 6: Final answer
   x = 1,318.46