Finding the Fourth Proportional to 1,112.58, 1,535.94 and 1,038.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.58 : 1,535.94 = 1,038.96 : x
2. Step 2: Convert to fraction form
   1,112.58/1,535.94 = 1,038.96/x
3. Step 3: Cross multiply
   1,112.58x = 1,535.94 × 1,038.96
4. Step 4: Simplify right side
   1,112.58x = 1,595,780.22
5. Step 5: Solve for x
   x = 1,595,780.22/1,112.58
6. Step 6: Final answer
   x = 1,434.31