Finding the Fourth Proportional to 1,354.82, 1,870.98 and 1,157.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.82 : 1,870.98 = 1,157.18 : x
2. Step 2: Convert to fraction form
   1,354.82/1,870.98 = 1,157.18/x
3. Step 3: Cross multiply
   1,354.82x = 1,870.98 × 1,157.18
4. Step 4: Simplify right side
   1,354.82x = 2,165,060.64
5. Step 5: Solve for x
   x = 2,165,060.64/1,354.82
6. Step 6: Final answer
   x = 1,598.04