Finding the Fourth Proportional to 1,007.83, 1,510.07 and 713.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007.83 : 1,510.07 = 713.88 : x
2. Step 2: Convert to fraction form
   1,007.83/1,510.07 = 713.88/x
3. Step 3: Cross multiply
   1,007.83x = 1,510.07 × 713.88
4. Step 4: Simplify right side
   1,007.83x = 1,078,008.77
5. Step 5: Solve for x
   x = 1,078,008.77/1,007.83
6. Step 6: Final answer
   x = 1,069.63