Finding the Fourth Proportional to 1,736.56, 2,599.36 and 1,189.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,736.56 : 2,599.36 = 1,189.81 : x
2. Step 2: Convert to fraction form
   1,736.56/2,599.36 = 1,189.81/x
3. Step 3: Cross multiply
   1,736.56x = 2,599.36 × 1,189.81
4. Step 4: Simplify right side
   1,736.56x = 3,092,744.52
5. Step 5: Solve for x
   x = 3,092,744.52/1,736.56
6. Step 6: Final answer
   x = 1,780.96