Finding the Fourth Proportional to 1,901.53, 2,622.61 and 1,238.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,901.53 : 2,622.61 = 1,238.59 : x
2. Step 2: Convert to fraction form
   1,901.53/2,622.61 = 1,238.59/x
3. Step 3: Cross multiply
   1,901.53x = 2,622.61 × 1,238.59
4. Step 4: Simplify right side
   1,901.53x = 3,248,338.52
5. Step 5: Solve for x
   x = 3,248,338.52/1,901.53
6. Step 6: Final answer
   x = 1,708.28