Finding the Fourth Proportional to 2,771.10, 4,156.71 and 1,210.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,771.10 : 4,156.71 = 1,210.02 : x
2. Step 2: Convert to fraction form
   2,771.10/4,156.71 = 1,210.02/x
3. Step 3: Cross multiply
   2,771.10x = 4,156.71 × 1,210.02
4. Step 4: Simplify right side
   2,771.10x = 5,029,702.23
5. Step 5: Solve for x
   x = 5,029,702.23/2,771.10
6. Step 6: Final answer
   x = 1,815.06