Finding the Fourth Proportional to 1,957.58, 2,934.78 and 1,339.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,957.58 : 2,934.78 = 1,339.76 : x
2. Step 2: Convert to fraction form
   1,957.58/2,934.78 = 1,339.76/x
3. Step 3: Cross multiply
   1,957.58x = 2,934.78 × 1,339.76
4. Step 4: Simplify right side
   1,957.58x = 3,931,900.85
5. Step 5: Solve for x
   x = 3,931,900.85/1,957.58
6. Step 6: Final answer
   x = 2,008.55