Finding the Fourth Proportional to 2,089.86, 3,117.10 and 1,813.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.86 : 3,117.10 = 1,813.76 : x
2. Step 2: Convert to fraction form
   2,089.86/3,117.10 = 1,813.76/x
3. Step 3: Cross multiply
   2,089.86x = 3,117.10 × 1,813.76
4. Step 4: Simplify right side
   2,089.86x = 5,653,671.30
5. Step 5: Solve for x
   x = 5,653,671.30/2,089.86
6. Step 6: Final answer
   x = 2,705.29