Finding the Fourth Proportional to 2,100.96, 3,151.55 and 802.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.96 : 3,151.55 = 802.53 : x
2. Step 2: Convert to fraction form
   2,100.96/3,151.55 = 802.53/x
3. Step 3: Cross multiply
   2,100.96x = 3,151.55 × 802.53
4. Step 4: Simplify right side
   2,100.96x = 2,529,209.41
5. Step 5: Solve for x
   x = 2,529,209.41/2,100.96
6. Step 6: Final answer
   x = 1,203.84