Finding the Fourth Proportional to 2,607.48, 3,911.45 and 1,047.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.48 : 3,911.45 = 1,047.42 : x
2. Step 2: Convert to fraction form
   2,607.48/3,911.45 = 1,047.42/x
3. Step 3: Cross multiply
   2,607.48x = 3,911.45 × 1,047.42
4. Step 4: Simplify right side
   2,607.48x = 4,096,925.72
5. Step 5: Solve for x
   x = 4,096,925.72/2,607.48
6. Step 6: Final answer
   x = 1,571.22