Finding the Fourth Proportional to 1,914.63, 2,870.52 and 743.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,914.63 : 2,870.52 = 743.60 : x
2. Step 2: Convert to fraction form
   1,914.63/2,870.52 = 743.60/x
3. Step 3: Cross multiply
   1,914.63x = 2,870.52 × 743.60
4. Step 4: Simplify right side
   1,914.63x = 2,134,518.67
5. Step 5: Solve for x
   x = 2,134,518.67/1,914.63
6. Step 6: Final answer
   x = 1,114.85