Finding the Fourth Proportional to 1,532.51, 2,111.10 and 1,111.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,532.51 : 2,111.10 = 1,111.62 : x
2. Step 2: Convert to fraction form
   1,532.51/2,111.10 = 1,111.62/x
3. Step 3: Cross multiply
   1,532.51x = 2,111.10 × 1,111.62
4. Step 4: Simplify right side
   1,532.51x = 2,346,740.98
5. Step 5: Solve for x
   x = 2,346,740.98/1,532.51
6. Step 6: Final answer
   x = 1,531.31