Finding the Fourth Proportional to 1,188.06, 1,773.98 and 1,063.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188.06 : 1,773.98 = 1,063.86 : x
2. Step 2: Convert to fraction form
   1,188.06/1,773.98 = 1,063.86/x
3. Step 3: Cross multiply
   1,188.06x = 1,773.98 × 1,063.86
4. Step 4: Simplify right side
   1,188.06x = 1,887,261.04
5. Step 5: Solve for x
   x = 1,887,261.04/1,188.06
6. Step 6: Final answer
   x = 1,588.52