Finding the Fourth Proportional to 1,534.38, 2,118.59 and 1,357.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,534.38 : 2,118.59 = 1,357.53 : x
2. Step 2: Convert to fraction form
   1,534.38/2,118.59 = 1,357.53/x
3. Step 3: Cross multiply
   1,534.38x = 2,118.59 × 1,357.53
4. Step 4: Simplify right side
   1,534.38x = 2,876,042.70
5. Step 5: Solve for x
   x = 2,876,042.70/1,534.38
6. Step 6: Final answer
   x = 1,874.40