Finding the Fourth Proportional to 1,553.91, 2,341.52 and 1,286.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553.91 : 2,341.52 = 1,286.01 : x
2. Step 2: Convert to fraction form
   1,553.91/2,341.52 = 1,286.01/x
3. Step 3: Cross multiply
   1,553.91x = 2,341.52 × 1,286.01
4. Step 4: Simplify right side
   1,553.91x = 3,011,211.71
5. Step 5: Solve for x
   x = 3,011,211.71/1,553.91
6. Step 6: Final answer
   x = 1,937.83