Finding the Fourth Proportional to 1,111.83, 1,535.76 and 1,015.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.83 : 1,535.76 = 1,015.23 : x
2. Step 2: Convert to fraction form
   1,111.83/1,535.76 = 1,015.23/x
3. Step 3: Cross multiply
   1,111.83x = 1,535.76 × 1,015.23
4. Step 4: Simplify right side
   1,111.83x = 1,559,155.38
5. Step 5: Solve for x
   x = 1,559,155.38/1,111.83
6. Step 6: Final answer
   x = 1,402.34