Finding the Fourth Proportional to 2,100.69, 3,151.58 and 802.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.69 : 3,151.58 = 802.26 : x
2. Step 2: Convert to fraction form
   2,100.69/3,151.58 = 802.26/x
3. Step 3: Cross multiply
   2,100.69x = 3,151.58 × 802.26
4. Step 4: Simplify right side
   2,100.69x = 2,528,382.56
5. Step 5: Solve for x
   x = 2,528,382.56/2,100.69
6. Step 6: Final answer
   x = 1,203.60