Finding the Fourth Proportional to 1,501.31, 2,252.60 and 1,380.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.31 : 2,252.60 = 1,380.22 : x
2. Step 2: Convert to fraction form
   1,501.31/2,252.60 = 1,380.22/x
3. Step 3: Cross multiply
   1,501.31x = 2,252.60 × 1,380.22
4. Step 4: Simplify right side
   1,501.31x = 3,109,083.57
5. Step 5: Solve for x
   x = 3,109,083.57/1,501.31
6. Step 6: Final answer
   x = 2,070.91