Finding the Fourth Proportional to 1,930.07, 2,663.50 and 1,045.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,930.07 : 2,663.50 = 1,045.87 : x
2. Step 2: Convert to fraction form
   1,930.07/2,663.50 = 1,045.87/x
3. Step 3: Cross multiply
   1,930.07x = 2,663.50 × 1,045.87
4. Step 4: Simplify right side
   1,930.07x = 2,785,663.51
5. Step 5: Solve for x
   x = 2,785,663.51/1,930.07
6. Step 6: Final answer
   x = 1,443.30