Finding the Fourth Proportional to 1,372.59, 1,894.16 and 743.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.59 : 1,894.16 = 743.12 : x
2. Step 2: Convert to fraction form
   1,372.59/1,894.16 = 743.12/x
3. Step 3: Cross multiply
   1,372.59x = 1,894.16 × 743.12
4. Step 4: Simplify right side
   1,372.59x = 1,407,580.57
5. Step 5: Solve for x
   x = 1,407,580.57/1,372.59
6. Step 6: Final answer
   x = 1,025.50