Finding the Fourth Proportional to 1,889.60, 2,607.91 and 1,182.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.60 : 2,607.91 = 1,182.15 : x
2. Step 2: Convert to fraction form
   1,889.60/2,607.91 = 1,182.15/x
3. Step 3: Cross multiply
   1,889.60x = 2,607.91 × 1,182.15
4. Step 4: Simplify right side
   1,889.60x = 3,082,937.85
5. Step 5: Solve for x
   x = 3,082,937.85/1,889.60
6. Step 6: Final answer
   x = 1,631.53