Finding the Fourth Proportional to 1,531.35, 2,113.27 and 832.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.35 : 2,113.27 = 832.72 : x
2. Step 2: Convert to fraction form
   1,531.35/2,113.27 = 832.72/x
3. Step 3: Cross multiply
   1,531.35x = 2,113.27 × 832.72
4. Step 4: Simplify right side
   1,531.35x = 1,759,762.19
5. Step 5: Solve for x
   x = 1,759,762.19/1,531.35
6. Step 6: Final answer
   x = 1,149.16