Finding the Fourth Proportional to 1,513.12, 2,088.12 and 884.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.12 : 2,088.12 = 884.04 : x
2. Step 2: Convert to fraction form
   1,513.12/2,088.12 = 884.04/x
3. Step 3: Cross multiply
   1,513.12x = 2,088.12 × 884.04
4. Step 4: Simplify right side
   1,513.12x = 1,845,981.60
5. Step 5: Solve for x
   x = 1,845,981.60/1,513.12
6. Step 6: Final answer
   x = 1,219.98