Finding the Fourth Proportional to 2,113.49, 2,916.80 and 1,404.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.49 : 2,916.80 = 1,404.08 : x
2. Step 2: Convert to fraction form
   2,113.49/2,916.80 = 1,404.08/x
3. Step 3: Cross multiply
   2,113.49x = 2,916.80 × 1,404.08
4. Step 4: Simplify right side
   2,113.49x = 4,095,420.54
5. Step 5: Solve for x
   x = 4,095,420.54/2,113.49
6. Step 6: Final answer
   x = 1,937.75