Finding the Fourth Proportional to 1,655.54, 2,284.81 and 947.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,655.54 : 2,284.81 = 947.25 : x
2. Step 2: Convert to fraction form
   1,655.54/2,284.81 = 947.25/x
3. Step 3: Cross multiply
   1,655.54x = 2,284.81 × 947.25
4. Step 4: Simplify right side
   1,655.54x = 2,164,272.48
5. Step 5: Solve for x
   x = 2,164,272.48/1,655.54
6. Step 6: Final answer
   x = 1,307.29