Finding the Fourth Proportional to 1,693.06, 2,336.41 and 947.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,693.06 : 2,336.41 = 947.02 : x
2. Step 2: Convert to fraction form
   1,693.06/2,336.41 = 947.02/x
3. Step 3: Cross multiply
   1,693.06x = 2,336.41 × 947.02
4. Step 4: Simplify right side
   1,693.06x = 2,212,627.00
5. Step 5: Solve for x
   x = 2,212,627.00/1,693.06
6. Step 6: Final answer
   x = 1,306.88