Finding the Fourth Proportional to 1,909.16, 2,635.59 and 1,807.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,909.16 : 2,635.59 = 1,807.41 : x
2. Step 2: Convert to fraction form
   1,909.16/2,635.59 = 1,807.41/x
3. Step 3: Cross multiply
   1,909.16x = 2,635.59 × 1,807.41
4. Step 4: Simplify right side
   1,909.16x = 4,763,591.72
5. Step 5: Solve for x
   x = 4,763,591.72/1,909.16
6. Step 6: Final answer
   x = 2,495.13