Finding the Fourth Proportional to 1,112.58, 1,665.23 and 1,011.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.58 : 1,665.23 = 1,011.74 : x
2. Step 2: Convert to fraction form
   1,112.58/1,665.23 = 1,011.74/x
3. Step 3: Cross multiply
   1,112.58x = 1,665.23 × 1,011.74
4. Step 4: Simplify right side
   1,112.58x = 1,684,766.42
5. Step 5: Solve for x
   x = 1,684,766.42/1,112.58
6. Step 6: Final answer
   x = 1,514.29