Finding the Fourth Proportional to 1,051.94, 1,569.16 and 1,021.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.94 : 1,569.16 = 1,021.52 : x
2. Step 2: Convert to fraction form
   1,051.94/1,569.16 = 1,021.52/x
3. Step 3: Cross multiply
   1,051.94x = 1,569.16 × 1,021.52
4. Step 4: Simplify right side
   1,051.94x = 1,602,928.32
5. Step 5: Solve for x
   x = 1,602,928.32/1,051.94
6. Step 6: Final answer
   x = 1,523.78