Finding the Fourth Proportional to 1,511.82, 2,085.72 and 1,013.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511.82 : 2,085.72 = 1,013.94 : x
2. Step 2: Convert to fraction form
   1,511.82/2,085.72 = 1,013.94/x
3. Step 3: Cross multiply
   1,511.82x = 2,085.72 × 1,013.94
4. Step 4: Simplify right side
   1,511.82x = 2,114,794.94
5. Step 5: Solve for x
   x = 2,114,794.94/1,511.82
6. Step 6: Final answer
   x = 1,398.84