Finding the Fourth Proportional to 5,274.34, 7,911.27 and 1,325.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,274.34 : 7,911.27 = 1,325.59 : x
2. Step 2: Convert to fraction form
   5,274.34/7,911.27 = 1,325.59/x
3. Step 3: Cross multiply
   5,274.34x = 7,911.27 × 1,325.59
4. Step 4: Simplify right side
   5,274.34x = 10,487,100.40
5. Step 5: Solve for x
   x = 10,487,100.40/5,274.34
6. Step 6: Final answer
   x = 1,988.32