Finding the Fourth Proportional to 2,373.54, 3,275.34 and 1,311.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,373.54 : 3,275.34 = 1,311.30 : x
2. Step 2: Convert to fraction form
   2,373.54/3,275.34 = 1,311.30/x
3. Step 3: Cross multiply
   2,373.54x = 3,275.34 × 1,311.30
4. Step 4: Simplify right side
   2,373.54x = 4,294,953.34
5. Step 5: Solve for x
   x = 4,294,953.34/2,373.54
6. Step 6: Final answer
   x = 1,809.51