Finding the Fourth Proportional to 1,858.76, 2,786.52 and 933.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.76 : 2,786.52 = 933.02 : x
2. Step 2: Convert to fraction form
   1,858.76/2,786.52 = 933.02/x
3. Step 3: Cross multiply
   1,858.76x = 2,786.52 × 933.02
4. Step 4: Simplify right side
   1,858.76x = 2,599,878.89
5. Step 5: Solve for x
   x = 2,599,878.89/1,858.76
6. Step 6: Final answer
   x = 1,398.72