Finding the Fourth Proportional to 2,083.55, 2,875.70 and 1,338.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.55 : 2,875.70 = 1,338.45 : x
2. Step 2: Convert to fraction form
   2,083.55/2,875.70 = 1,338.45/x
3. Step 3: Cross multiply
   2,083.55x = 2,875.70 × 1,338.45
4. Step 4: Simplify right side
   2,083.55x = 3,848,980.67
5. Step 5: Solve for x
   x = 3,848,980.67/2,083.55
6. Step 6: Final answer
   x = 1,847.32