Finding the Fourth Proportional to 2,607.18, 3,911.01 and 1,047.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.18 : 3,911.01 = 1,047.30 : x
2. Step 2: Convert to fraction form
   2,607.18/3,911.01 = 1,047.30/x
3. Step 3: Cross multiply
   2,607.18x = 3,911.01 × 1,047.30
4. Step 4: Simplify right side
   2,607.18x = 4,096,000.77
5. Step 5: Solve for x
   x = 4,096,000.77/2,607.18
6. Step 6: Final answer
   x = 1,571.05