Finding the Fourth Proportional to 1,768.96, 2,654.86 and 947.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,768.96 : 2,654.86 = 947.82 : x
2. Step 2: Convert to fraction form
   1,768.96/2,654.86 = 947.82/x
3. Step 3: Cross multiply
   1,768.96x = 2,654.86 × 947.82
4. Step 4: Simplify right side
   1,768.96x = 2,516,329.41
5. Step 5: Solve for x
   x = 2,516,329.41/1,768.96
6. Step 6: Final answer
   x = 1,422.49