Finding the Fourth Proportional to 1,553.85, 2,323.89 and 1,381.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553.85 : 2,323.89 = 1,381.73 : x
2. Step 2: Convert to fraction form
   1,553.85/2,323.89 = 1,381.73/x
3. Step 3: Cross multiply
   1,553.85x = 2,323.89 × 1,381.73
4. Step 4: Simplify right side
   1,553.85x = 3,210,976.91
5. Step 5: Solve for x
   x = 3,210,976.91/1,553.85
6. Step 6: Final answer
   x = 2,066.47