Finding the Fourth Proportional to 2,005.54, 2,987.15 and 1,901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,005.54 : 2,987.15 = 1,901.50 : x
2. Step 2: Convert to fraction form
   2,005.54/2,987.15 = 1,901.50/x
3. Step 3: Cross multiply
   2,005.54x = 2,987.15 × 1,901.50
4. Step 4: Simplify right side
   2,005.54x = 5,680,065.73
5. Step 5: Solve for x
   x = 5,680,065.73/2,005.54
6. Step 6: Final answer
   x = 2,832.19