Finding the Fourth Proportional to 2,142.03, 2,955.98 and 1,210.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.03 : 2,955.98 = 1,210.53 : x
2. Step 2: Convert to fraction form
   2,142.03/2,955.98 = 1,210.53/x
3. Step 3: Cross multiply
   2,142.03x = 2,955.98 × 1,210.53
4. Step 4: Simplify right side
   2,142.03x = 3,578,296.42
5. Step 5: Solve for x
   x = 3,578,296.42/2,142.03
6. Step 6: Final answer
   x = 1,670.52