Finding the Fourth Proportional to 1,012.19, 1,513.96 and 882.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012.19 : 1,513.96 = 882.59 : x
2. Step 2: Convert to fraction form
   1,012.19/1,513.96 = 882.59/x
3. Step 3: Cross multiply
   1,012.19x = 1,513.96 × 882.59
4. Step 4: Simplify right side
   1,012.19x = 1,336,196.18
5. Step 5: Solve for x
   x = 1,336,196.18/1,012.19
6. Step 6: Final answer
   x = 1,320.11