Finding the Fourth Proportional to 1,817.10, 2,507.22 and 1,118.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,817.10 : 2,507.22 = 1,118.34 : x
2. Step 2: Convert to fraction form
   1,817.10/2,507.22 = 1,118.34/x
3. Step 3: Cross multiply
   1,817.10x = 2,507.22 × 1,118.34
4. Step 4: Simplify right side
   1,817.10x = 2,803,924.41
5. Step 5: Solve for x
   x = 2,803,924.41/1,817.10
6. Step 6: Final answer
   x = 1,543.08