Finding the Fourth Proportional to 1,870.15, 2,802.57 and 1,037.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.15 : 2,802.57 = 1,037.57 : x
2. Step 2: Convert to fraction form
   1,870.15/2,802.57 = 1,037.57/x
3. Step 3: Cross multiply
   1,870.15x = 2,802.57 × 1,037.57
4. Step 4: Simplify right side
   1,870.15x = 2,907,862.55
5. Step 5: Solve for x
   x = 2,907,862.55/1,870.15
6. Step 6: Final answer
   x = 1,554.88