Finding the Fourth Proportional to 1,692.50, 2,541.48 and 1,276.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,692.50 : 2,541.48 = 1,276.05 : x
2. Step 2: Convert to fraction form
   1,692.50/2,541.48 = 1,276.05/x
3. Step 3: Cross multiply
   1,692.50x = 2,541.48 × 1,276.05
4. Step 4: Simplify right side
   1,692.50x = 3,243,060.30
5. Step 5: Solve for x
   x = 3,243,060.30/1,692.50
6. Step 6: Final answer
   x = 1,916.14