Finding the Fourth Proportional to 1,175.30, 1,620.59 and 802.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,175.30 : 1,620.59 = 802.49 : x
2. Step 2: Convert to fraction form
   1,175.30/1,620.59 = 802.49/x
3. Step 3: Cross multiply
   1,175.30x = 1,620.59 × 802.49
4. Step 4: Simplify right side
   1,175.30x = 1,300,501.17
5. Step 5: Solve for x
   x = 1,300,501.17/1,175.30
6. Step 6: Final answer
   x = 1,106.52