Finding the Fourth Proportional to 1,858.98, 2,786.16 and 1,627.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.98 : 2,786.16 = 1,627.32 : x
2. Step 2: Convert to fraction form
   1,858.98/2,786.16 = 1,627.32/x
3. Step 3: Cross multiply
   1,858.98x = 2,786.16 × 1,627.32
4. Step 4: Simplify right side
   1,858.98x = 4,533,973.89
5. Step 5: Solve for x
   x = 4,533,973.89/1,858.98
6. Step 6: Final answer
   x = 2,438.96