Finding the Fourth Proportional to 1,147.59, 1,727.58 and 1,045.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147.59 : 1,727.58 = 1,045.53 : x
2. Step 2: Convert to fraction form
   1,147.59/1,727.58 = 1,045.53/x
3. Step 3: Cross multiply
   1,147.59x = 1,727.58 × 1,045.53
4. Step 4: Simplify right side
   1,147.59x = 1,806,236.72
5. Step 5: Solve for x
   x = 1,806,236.72/1,147.59
6. Step 6: Final answer
   x = 1,573.94