Finding the Fourth Proportional to 3,125.98, 4,685.05 and 1,276.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,125.98 : 4,685.05 = 1,276.08 : x
2. Step 2: Convert to fraction form
   3,125.98/4,685.05 = 1,276.08/x
3. Step 3: Cross multiply
   3,125.98x = 4,685.05 × 1,276.08
4. Step 4: Simplify right side
   3,125.98x = 5,978,498.60
5. Step 5: Solve for x
   x = 5,978,498.60/3,125.98
6. Step 6: Final answer
   x = 1,912.52