Finding the Fourth Proportional to 1,870.88, 2,581.32 and 1,162.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.88 : 2,581.32 = 1,162.40 : x
2. Step 2: Convert to fraction form
   1,870.88/2,581.32 = 1,162.40/x
3. Step 3: Cross multiply
   1,870.88x = 2,581.32 × 1,162.40
4. Step 4: Simplify right side
   1,870.88x = 3,000,526.37
5. Step 5: Solve for x
   x = 3,000,526.37/1,870.88
6. Step 6: Final answer
   x = 1,603.80