Finding the Fourth Proportional to 1,384.73, 1,920.72 and 1,334.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.73 : 1,920.72 = 1,334.86 : x
2. Step 2: Convert to fraction form
   1,384.73/1,920.72 = 1,334.86/x
3. Step 3: Cross multiply
   1,384.73x = 1,920.72 × 1,334.86
4. Step 4: Simplify right side
   1,384.73x = 2,563,896.37
5. Step 5: Solve for x
   x = 2,563,896.37/1,384.73
6. Step 6: Final answer
   x = 1,851.55