Finding the Fourth Proportional to 1,654.56, 2,483.28 and 885.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,654.56 : 2,483.28 = 885.60 : x
2. Step 2: Convert to fraction form
   1,654.56/2,483.28 = 885.60/x
3. Step 3: Cross multiply
   1,654.56x = 2,483.28 × 885.60
4. Step 4: Simplify right side
   1,654.56x = 2,199,192.77
5. Step 5: Solve for x
   x = 2,199,192.77/1,654.56
6. Step 6: Final answer
   x = 1,329.17