Finding the Fourth Proportional to 1,878.23, 2,591.82 and 1,038.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878.23 : 2,591.82 = 1,038.93 : x
2. Step 2: Convert to fraction form
   1,878.23/2,591.82 = 1,038.93/x
3. Step 3: Cross multiply
   1,878.23x = 2,591.82 × 1,038.93
4. Step 4: Simplify right side
   1,878.23x = 2,692,719.55
5. Step 5: Solve for x
   x = 2,692,719.55/1,878.23
6. Step 6: Final answer
   x = 1,433.65