Finding the Fourth Proportional to 3,156.09, 4,731.52 and 1,308.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,156.09 : 4,731.52 = 1,308.52 : x
2. Step 2: Convert to fraction form
   3,156.09/4,731.52 = 1,308.52/x
3. Step 3: Cross multiply
   3,156.09x = 4,731.52 × 1,308.52
4. Step 4: Simplify right side
   3,156.09x = 6,191,288.55
5. Step 5: Solve for x
   x = 6,191,288.55/3,156.09
6. Step 6: Final answer
   x = 1,961.70