Finding the Fourth Proportional to 1,532.42, 2,111.85 and 1,381.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,532.42 : 2,111.85 = 1,381.49 : x
2. Step 2: Convert to fraction form
   1,532.42/2,111.85 = 1,381.49/x
3. Step 3: Cross multiply
   1,532.42x = 2,111.85 × 1,381.49
4. Step 4: Simplify right side
   1,532.42x = 2,917,489.10
5. Step 5: Solve for x
   x = 2,917,489.10/1,532.42
6. Step 6: Final answer
   x = 1,903.85