Finding the Fourth Proportional to 1,372.76, 1,893.79 and 954.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.76 : 1,893.79 = 954.12 : x
2. Step 2: Convert to fraction form
   1,372.76/1,893.79 = 954.12/x
3. Step 3: Cross multiply
   1,372.76x = 1,893.79 × 954.12
4. Step 4: Simplify right side
   1,372.76x = 1,806,900.53
5. Step 5: Solve for x
   x = 1,806,900.53/1,372.76
6. Step 6: Final answer
   x = 1,316.25