Finding the Fourth Proportional to 2,068.35, 3,101.55 and 802.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.35 : 3,101.55 = 802.50 : x
2. Step 2: Convert to fraction form
   2,068.35/3,101.55 = 802.50/x
3. Step 3: Cross multiply
   2,068.35x = 3,101.55 × 802.50
4. Step 4: Simplify right side
   2,068.35x = 2,488,978.37
5. Step 5: Solve for x
   x = 2,488,978.37/2,068.35
6. Step 6: Final answer
   x = 1,203.36