Finding the Fourth Proportional to 1,814.72, 2,505.60 and 1,116.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.72 : 2,505.60 = 1,116.32 : x
2. Step 2: Convert to fraction form
   1,814.72/2,505.60 = 1,116.32/x
3. Step 3: Cross multiply
   1,814.72x = 2,505.60 × 1,116.32
4. Step 4: Simplify right side
   1,814.72x = 2,797,051.39
5. Step 5: Solve for x
   x = 2,797,051.39/1,814.72
6. Step 6: Final answer
   x = 1,541.31