Finding the Fourth Proportional to 1,810.32, 2,499.18 and 1,181.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.32 : 2,499.18 = 1,181.76 : x
2. Step 2: Convert to fraction form
   1,810.32/2,499.18 = 1,181.76/x
3. Step 3: Cross multiply
   1,810.32x = 2,499.18 × 1,181.76
4. Step 4: Simplify right side
   1,810.32x = 2,953,430.96
5. Step 5: Solve for x
   x = 2,953,430.96/1,810.32
6. Step 6: Final answer
   x = 1,631.44