Finding the Fourth Proportional to 1,905.07, 2,628.25 and 1,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,905.07 : 2,628.25 = 1,196.50 : x
2. Step 2: Convert to fraction form
   1,905.07/2,628.25 = 1,196.50/x
3. Step 3: Cross multiply
   1,905.07x = 2,628.25 × 1,196.50
4. Step 4: Simplify right side
   1,905.07x = 3,144,701.13
5. Step 5: Solve for x
   x = 3,144,701.13/1,905.07
6. Step 6: Final answer
   x = 1,650.70