Finding the Fourth Proportional to 3,124.47, 4,688.23 and 1,276.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,124.47 : 4,688.23 = 1,276.10 : x
2. Step 2: Convert to fraction form
   3,124.47/4,688.23 = 1,276.10/x
3. Step 3: Cross multiply
   3,124.47x = 4,688.23 × 1,276.10
4. Step 4: Simplify right side
   3,124.47x = 5,982,670.02
5. Step 5: Solve for x
   x = 5,982,670.02/3,124.47
6. Step 6: Final answer
   x = 1,914.78