Finding the Fourth Proportional to 1,737.69, 2,605.10 and 1,188.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,737.69 : 2,605.10 = 1,188.51 : x
2. Step 2: Convert to fraction form
   1,737.69/2,605.10 = 1,188.51/x
3. Step 3: Cross multiply
   1,737.69x = 2,605.10 × 1,188.51
4. Step 4: Simplify right side
   1,737.69x = 3,096,181.46
5. Step 5: Solve for x
   x = 3,096,181.46/1,737.69
6. Step 6: Final answer
   x = 1,781.78