Finding the Fourth Proportional to 1,152.96, 1,730.56 and 1,090.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.96 : 1,730.56 = 1,090.53 : x
2. Step 2: Convert to fraction form
   1,152.96/1,730.56 = 1,090.53/x
3. Step 3: Cross multiply
   1,152.96x = 1,730.56 × 1,090.53
4. Step 4: Simplify right side
   1,152.96x = 1,887,227.60
5. Step 5: Solve for x
   x = 1,887,227.60/1,152.96
6. Step 6: Final answer
   x = 1,636.85