Finding the Fourth Proportional to 2,100.84, 3,148.38 and 800.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.84 : 3,148.38 = 800.52 : x
2. Step 2: Convert to fraction form
   2,100.84/3,148.38 = 800.52/x
3. Step 3: Cross multiply
   2,100.84x = 3,148.38 × 800.52
4. Step 4: Simplify right side
   2,100.84x = 2,520,341.16
5. Step 5: Solve for x
   x = 2,520,341.16/2,100.84
6. Step 6: Final answer
   x = 1,199.68