Finding the Fourth Proportional to 1,804.32, 2,488.98 and 1,131.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,804.32 : 2,488.98 = 1,131.96 : x
2. Step 2: Convert to fraction form
   1,804.32/2,488.98 = 1,131.96/x
3. Step 3: Cross multiply
   1,804.32x = 2,488.98 × 1,131.96
4. Step 4: Simplify right side
   1,804.32x = 2,817,425.80
5. Step 5: Solve for x
   x = 2,817,425.80/1,804.32
6. Step 6: Final answer
   x = 1,561.49