Finding the Fourth Proportional to 1,802.59, 2,704.83 and 707.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802.59 : 2,704.83 = 707.28 : x
2. Step 2: Convert to fraction form
   1,802.59/2,704.83 = 707.28/x
3. Step 3: Cross multiply
   1,802.59x = 2,704.83 × 707.28
4. Step 4: Simplify right side
   1,802.59x = 1,913,072.16
5. Step 5: Solve for x
   x = 1,913,072.16/1,802.59
6. Step 6: Final answer
   x = 1,061.29