Finding the Fourth Proportional to 1,693.59, 2,337.05 and 947.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,693.59 : 2,337.05 = 947.63 : x
2. Step 2: Convert to fraction form
   1,693.59/2,337.05 = 947.63/x
3. Step 3: Cross multiply
   1,693.59x = 2,337.05 × 947.63
4. Step 4: Simplify right side
   1,693.59x = 2,214,642.27
5. Step 5: Solve for x
   x = 2,214,642.27/1,693.59
6. Step 6: Final answer
   x = 1,307.66