Finding the Fourth Proportional to 3,605.16, 5,400.42 and 1,870.14

Step by Step Solution

1. Step 1: Write the proportion equation
   3,605.16 : 5,400.42 = 1,870.14 : x
2. Step 2: Convert to fraction form
   3,605.16/5,400.42 = 1,870.14/x
3. Step 3: Cross multiply
   3,605.16x = 5,400.42 × 1,870.14
4. Step 4: Simplify right side
   3,605.16x = 10,099,541.46
5. Step 5: Solve for x
   x = 10,099,541.46/3,605.16
6. Step 6: Final answer
   x = 2,801.41