Finding the Fourth Proportional to 3,256.39, 4,885.59 and 947.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,256.39 : 4,885.59 = 947.89 : x
2. Step 2: Convert to fraction form
   3,256.39/4,885.59 = 947.89/x
3. Step 3: Cross multiply
   3,256.39x = 4,885.59 × 947.89
4. Step 4: Simplify right side
   3,256.39x = 4,631,001.91
5. Step 5: Solve for x
   x = 4,631,001.91/3,256.39
6. Step 6: Final answer
   x = 1,422.13