Finding the Fourth Proportional to 2,187.60, 3,018.96 and 1,192.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.60 : 3,018.96 = 1,192.83 : x
2. Step 2: Convert to fraction form
   2,187.60/3,018.96 = 1,192.83/x
3. Step 3: Cross multiply
   2,187.60x = 3,018.96 × 1,192.83
4. Step 4: Simplify right side
   2,187.60x = 3,601,106.06
5. Step 5: Solve for x
   x = 3,601,106.06/2,187.60
6. Step 6: Final answer
   x = 1,646.14