Finding the Fourth Proportional to 1,814.52, 2,504.40 and 1,152.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.52 : 2,504.40 = 1,152.15 : x
2. Step 2: Convert to fraction form
   1,814.52/2,504.40 = 1,152.15/x
3. Step 3: Cross multiply
   1,814.52x = 2,504.40 × 1,152.15
4. Step 4: Simplify right side
   1,814.52x = 2,885,444.46
5. Step 5: Solve for x
   x = 2,885,444.46/1,814.52
6. Step 6: Final answer
   x = 1,590.20