Finding the Fourth Proportional to 2,134.51, 2,945.80 and 1,190.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.51 : 2,945.80 = 1,190.35 : x
2. Step 2: Convert to fraction form
   2,134.51/2,945.80 = 1,190.35/x
3. Step 3: Cross multiply
   2,134.51x = 2,945.80 × 1,190.35
4. Step 4: Simplify right side
   2,134.51x = 3,506,533.03
5. Step 5: Solve for x
   x = 3,506,533.03/2,134.51
6. Step 6: Final answer
   x = 1,642.78