Finding the Fourth Proportional to 1,693.76, 2,337.25 and 947.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,693.76 : 2,337.25 = 947.74 : x
2. Step 2: Convert to fraction form
   1,693.76/2,337.25 = 947.74/x
3. Step 3: Cross multiply
   1,693.76x = 2,337.25 × 947.74
4. Step 4: Simplify right side
   1,693.76x = 2,215,105.32
5. Step 5: Solve for x
   x = 2,215,105.32/1,693.76
6. Step 6: Final answer
   x = 1,307.80