Finding the Fourth Proportional to 2,071.53, 3,108.42 and 901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.53 : 3,108.42 = 901.50 : x
2. Step 2: Convert to fraction form
   2,071.53/3,108.42 = 901.50/x
3. Step 3: Cross multiply
   2,071.53x = 3,108.42 × 901.50
4. Step 4: Simplify right side
   2,071.53x = 2,802,240.63
5. Step 5: Solve for x
   x = 2,802,240.63/2,071.53
6. Step 6: Final answer
   x = 1,352.74