Finding the Fourth Proportional to 1,935.89, 2,673.70 and 1,309.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,935.89 : 2,673.70 = 1,309.01 : x
2. Step 2: Convert to fraction form
   1,935.89/2,673.70 = 1,309.01/x
3. Step 3: Cross multiply
   1,935.89x = 2,673.70 × 1,309.01
4. Step 4: Simplify right side
   1,935.89x = 3,499,886.67
5. Step 5: Solve for x
   x = 3,499,886.67/1,935.89
6. Step 6: Final answer
   x = 1,807.90