Finding the Fourth Proportional to 1,983.69, 2,971.49 and 1,692.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.69 : 2,971.49 = 1,692.50 : x
2. Step 2: Convert to fraction form
   1,983.69/2,971.49 = 1,692.50/x
3. Step 3: Cross multiply
   1,983.69x = 2,971.49 × 1,692.50
4. Step 4: Simplify right side
   1,983.69x = 5,029,223.51
5. Step 5: Solve for x
   x = 5,029,223.51/1,983.69
6. Step 6: Final answer
   x = 2,535.29