Finding the Fourth Proportional to 1,693.71, 2,337.17 and 947.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,693.71 : 2,337.17 = 947.57 : x
2. Step 2: Convert to fraction form
   1,693.71/2,337.17 = 947.57/x
3. Step 3: Cross multiply
   1,693.71x = 2,337.17 × 947.57
4. Step 4: Simplify right side
   1,693.71x = 2,214,632.18
5. Step 5: Solve for x
   x = 2,214,632.18/1,693.71
6. Step 6: Final answer
   x = 1,307.56