Finding the Fourth Proportional to 1,531.08, 2,111.67 and 1,064.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.08 : 2,111.67 = 1,064.52 : x
2. Step 2: Convert to fraction form
   1,531.08/2,111.67 = 1,064.52/x
3. Step 3: Cross multiply
   1,531.08x = 2,111.67 × 1,064.52
4. Step 4: Simplify right side
   1,531.08x = 2,247,914.95
5. Step 5: Solve for x
   x = 2,247,914.95/1,531.08
6. Step 6: Final answer
   x = 1,468.19