Finding the Fourth Proportional to 1,410.76, 1,944.40 and 1,213.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.76 : 1,944.40 = 1,213.48 : x
2. Step 2: Convert to fraction form
   1,410.76/1,944.40 = 1,213.48/x
3. Step 3: Cross multiply
   1,410.76x = 1,944.40 × 1,213.48
4. Step 4: Simplify right side
   1,410.76x = 2,359,490.51
5. Step 5: Solve for x
   x = 2,359,490.51/1,410.76
6. Step 6: Final answer
   x = 1,672.50