Finding the Fourth Proportional to 1,913.42, 2,870.94 and 1,046.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913.42 : 2,870.94 = 1,046.72 : x
2. Step 2: Convert to fraction form
   1,913.42/2,870.94 = 1,046.72/x
3. Step 3: Cross multiply
   1,913.42x = 2,870.94 × 1,046.72
4. Step 4: Simplify right side
   1,913.42x = 3,005,070.32
5. Step 5: Solve for x
   x = 3,005,070.32/1,913.42
6. Step 6: Final answer
   x = 1,570.52