Finding the Fourth Proportional to 1,803.59, 2,488.01 and 1,173.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803.59 : 2,488.01 = 1,173.34 : x
2. Step 2: Convert to fraction form
   1,803.59/2,488.01 = 1,173.34/x
3. Step 3: Cross multiply
   1,803.59x = 2,488.01 × 1,173.34
4. Step 4: Simplify right side
   1,803.59x = 2,919,281.65
5. Step 5: Solve for x
   x = 2,919,281.65/1,803.59
6. Step 6: Final answer
   x = 1,618.59