Finding the Fourth Proportional to 1,693.43, 2,336.71 and 947.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,693.43 : 2,336.71 = 947.36 : x
2. Step 2: Convert to fraction form
   1,693.43/2,336.71 = 947.36/x
3. Step 3: Cross multiply
   1,693.43x = 2,336.71 × 947.36
4. Step 4: Simplify right side
   1,693.43x = 2,213,705.59
5. Step 5: Solve for x
   x = 2,213,705.59/1,693.43
6. Step 6: Final answer
   x = 1,307.23