Finding the Fourth Proportional to 1,403.34, 1,935.09 and 955.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.34 : 1,935.09 = 955.50 : x
2. Step 2: Convert to fraction form
   1,403.34/1,935.09 = 955.50/x
3. Step 3: Cross multiply
   1,403.34x = 1,935.09 × 955.50
4. Step 4: Simplify right side
   1,403.34x = 1,848,978.50
5. Step 5: Solve for x
   x = 1,848,978.50/1,403.34
6. Step 6: Final answer
   x = 1,317.56