Finding the Fourth Proportional to 1,876.32, 2,588.83 and 1,212.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,876.32 : 2,588.83 = 1,212.12 : x
2. Step 2: Convert to fraction form
   1,876.32/2,588.83 = 1,212.12/x
3. Step 3: Cross multiply
   1,876.32x = 2,588.83 × 1,212.12
4. Step 4: Simplify right side
   1,876.32x = 3,137,969.59
5. Step 5: Solve for x
   x = 3,137,969.59/1,876.32
6. Step 6: Final answer
   x = 1,672.41