Finding the Fourth Proportional to 1,531.56, 2,111.58 and 1,112.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.56 : 2,111.58 = 1,112.52 : x
2. Step 2: Convert to fraction form
   1,531.56/2,111.58 = 1,112.52/x
3. Step 3: Cross multiply
   1,531.56x = 2,111.58 × 1,112.52
4. Step 4: Simplify right side
   1,531.56x = 2,349,174.98
5. Step 5: Solve for x
   x = 2,349,174.98/1,531.56
6. Step 6: Final answer
   x = 1,533.84