Finding the Fourth Proportional to 1,870.23, 2,580.91 and 1,030.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.23 : 2,580.91 = 1,030.93 : x
2. Step 2: Convert to fraction form
   1,870.23/2,580.91 = 1,030.93/x
3. Step 3: Cross multiply
   1,870.23x = 2,580.91 × 1,030.93
4. Step 4: Simplify right side
   1,870.23x = 2,660,737.55
5. Step 5: Solve for x
   x = 2,660,737.55/1,870.23
6. Step 6: Final answer
   x = 1,422.68