Finding the Fourth Proportional to 2,100.61, 2,895.27 and 1,436.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.61 : 2,895.27 = 1,436.31 : x
2. Step 2: Convert to fraction form
   2,100.61/2,895.27 = 1,436.31/x
3. Step 3: Cross multiply
   2,100.61x = 2,895.27 × 1,436.31
4. Step 4: Simplify right side
   2,100.61x = 4,158,505.25
5. Step 5: Solve for x
   x = 4,158,505.25/2,100.61
6. Step 6: Final answer
   x = 1,979.67