Finding the Fourth Proportional to 1,820.30, 2,511.89 and 1,112.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.30 : 2,511.89 = 1,112.26 : x
2. Step 2: Convert to fraction form
   1,820.30/2,511.89 = 1,112.26/x
3. Step 3: Cross multiply
   1,820.30x = 2,511.89 × 1,112.26
4. Step 4: Simplify right side
   1,820.30x = 2,793,874.77
5. Step 5: Solve for x
   x = 2,793,874.77/1,820.30
6. Step 6: Final answer
   x = 1,534.84