Finding the Fourth Proportional to 1,957.50, 2,701.59 and 1,129.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,957.50 : 2,701.59 = 1,129.50 : x
2. Step 2: Convert to fraction form
   1,957.50/2,701.59 = 1,129.50/x
3. Step 3: Cross multiply
   1,957.50x = 2,701.59 × 1,129.50
4. Step 4: Simplify right side
   1,957.50x = 3,051,445.91
5. Step 5: Solve for x
   x = 3,051,445.91/1,957.50
6. Step 6: Final answer
   x = 1,558.85