Finding the Fourth Proportional to 1,897.53, 2,618.69 and 1,058.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.53 : 2,618.69 = 1,058.31 : x
2. Step 2: Convert to fraction form
   1,897.53/2,618.69 = 1,058.31/x
3. Step 3: Cross multiply
   1,897.53x = 2,618.69 × 1,058.31
4. Step 4: Simplify right side
   1,897.53x = 2,771,380.52
5. Step 5: Solve for x
   x = 2,771,380.52/1,897.53
6. Step 6: Final answer
   x = 1,460.52