Finding the Fourth Proportional to 2,314.21, 3,471.55 and 853.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,314.21 : 3,471.55 = 853.02 : x
2. Step 2: Convert to fraction form
   2,314.21/3,471.55 = 853.02/x
3. Step 3: Cross multiply
   2,314.21x = 3,471.55 × 853.02
4. Step 4: Simplify right side
   2,314.21x = 2,961,301.58
5. Step 5: Solve for x
   x = 2,961,301.58/2,314.21
6. Step 6: Final answer
   x = 1,279.62