Finding the Fourth Proportional to 1,037.43, 1,427.46 and 1,012.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,037.43 : 1,427.46 = 1,012.83 : x
2. Step 2: Convert to fraction form
   1,037.43/1,427.46 = 1,012.83/x
3. Step 3: Cross multiply
   1,037.43x = 1,427.46 × 1,012.83
4. Step 4: Simplify right side
   1,037.43x = 1,445,774.31
5. Step 5: Solve for x
   x = 1,445,774.31/1,037.43
6. Step 6: Final answer
   x = 1,393.61