Finding the Fourth Proportional to 1,872.67, 2,583.93 and 1,164.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,872.67 : 2,583.93 = 1,164.72 : x
2. Step 2: Convert to fraction form
   1,872.67/2,583.93 = 1,164.72/x
3. Step 3: Cross multiply
   1,872.67x = 2,583.93 × 1,164.72
4. Step 4: Simplify right side
   1,872.67x = 3,009,554.95
5. Step 5: Solve for x
   x = 3,009,554.95/1,872.67
6. Step 6: Final answer
   x = 1,607.09