Finding the Fourth Proportional to 1,372.32, 2,054.70 and 934.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.32 : 2,054.70 = 934.38 : x
2. Step 2: Convert to fraction form
   1,372.32/2,054.70 = 934.38/x
3. Step 3: Cross multiply
   1,372.32x = 2,054.70 × 934.38
4. Step 4: Simplify right side
   1,372.32x = 1,919,870.59
5. Step 5: Solve for x
   x = 1,919,870.59/1,372.32
6. Step 6: Final answer
   x = 1,399.00