Finding the Fourth Proportional to 1,898.81, 2,840.71 and 1,437.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,898.81 : 2,840.71 = 1,437.92 : x
2. Step 2: Convert to fraction form
   1,898.81/2,840.71 = 1,437.92/x
3. Step 3: Cross multiply
   1,898.81x = 2,840.71 × 1,437.92
4. Step 4: Simplify right side
   1,898.81x = 4,084,713.72
5. Step 5: Solve for x
   x = 4,084,713.72/1,898.81
6. Step 6: Final answer
   x = 2,151.20