Finding the Fourth Proportional to 1,693.37, 2,336.82 and 947.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,693.37 : 2,336.82 = 947.32 : x
2. Step 2: Convert to fraction form
   1,693.37/2,336.82 = 947.32/x
3. Step 3: Cross multiply
   1,693.37x = 2,336.82 × 947.32
4. Step 4: Simplify right side
   1,693.37x = 2,213,716.32
5. Step 5: Solve for x
   x = 2,213,716.32/1,693.37
6. Step 6: Final answer
   x = 1,307.28