Finding the Fourth Proportional to 1,005.30, 1,510.25 and 713.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005.30 : 1,510.25 = 713.52 : x
2. Step 2: Convert to fraction form
   1,005.30/1,510.25 = 713.52/x
3. Step 3: Cross multiply
   1,005.30x = 1,510.25 × 713.52
4. Step 4: Simplify right side
   1,005.30x = 1,077,586.03
5. Step 5: Solve for x
   x = 1,077,586.03/1,005.30
6. Step 6: Final answer
   x = 1,071.91