Finding the Fourth Proportional to 1,340.90, 1,846.98 and 947.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340.90 : 1,846.98 = 947.24 : x
2. Step 2: Convert to fraction form
   1,340.90/1,846.98 = 947.24/x
3. Step 3: Cross multiply
   1,340.90x = 1,846.98 × 947.24
4. Step 4: Simplify right side
   1,340.90x = 1,749,533.34
5. Step 5: Solve for x
   x = 1,749,533.34/1,340.90
6. Step 6: Final answer
   x = 1,304.75