Finding the Fourth Proportional to 1,930.86, 2,663.55 and 1,340.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,930.86 : 2,663.55 = 1,340.37 : x
2. Step 2: Convert to fraction form
   1,930.86/2,663.55 = 1,340.37/x
3. Step 3: Cross multiply
   1,930.86x = 2,663.55 × 1,340.37
4. Step 4: Simplify right side
   1,930.86x = 3,570,142.51
5. Step 5: Solve for x
   x = 3,570,142.51/1,930.86
6. Step 6: Final answer
   x = 1,848.99