Finding the Fourth Proportional to 1,915.02, 2,870.10 and 1,093.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915.02 : 2,870.10 = 1,093.75 : x
2. Step 2: Convert to fraction form
   1,915.02/2,870.10 = 1,093.75/x
3. Step 3: Cross multiply
   1,915.02x = 2,870.10 × 1,093.75
4. Step 4: Simplify right side
   1,915.02x = 3,139,164.70
5. Step 5: Solve for x
   x = 3,139,164.70/1,915.02
6. Step 6: Final answer
   x = 1,639.23