Finding the Fourth Proportional to 1,385.55, 1,914.03 and 967.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.55 : 1,914.03 = 967.05 : x
2. Step 2: Convert to fraction form
   1,385.55/1,914.03 = 967.05/x
3. Step 3: Cross multiply
   1,385.55x = 1,914.03 × 967.05
4. Step 4: Simplify right side
   1,385.55x = 1,850,962.71
5. Step 5: Solve for x
   x = 1,850,962.71/1,385.55
6. Step 6: Final answer
   x = 1,335.90