Finding the Fourth Proportional to 1,510.71, 2,262.38 and 1,047.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.71 : 2,262.38 = 1,047.21 : x
2. Step 2: Convert to fraction form
   1,510.71/2,262.38 = 1,047.21/x
3. Step 3: Cross multiply
   1,510.71x = 2,262.38 × 1,047.21
4. Step 4: Simplify right side
   1,510.71x = 2,369,181.72
5. Step 5: Solve for x
   x = 2,369,181.72/1,510.71
6. Step 6: Final answer
   x = 1,568.26