Finding the Fourth Proportional to 1,152.06, 1,726.17 and 1,057.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.06 : 1,726.17 = 1,057.02 : x
2. Step 2: Convert to fraction form
   1,152.06/1,726.17 = 1,057.02/x
3. Step 3: Cross multiply
   1,152.06x = 1,726.17 × 1,057.02
4. Step 4: Simplify right side
   1,152.06x = 1,824,596.21
5. Step 5: Solve for x
   x = 1,824,596.21/1,152.06
6. Step 6: Final answer
   x = 1,583.77