Finding the Fourth Proportional to 1,913.98, 2,870.89 and 527.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913.98 : 2,870.89 = 527.47 : x
2. Step 2: Convert to fraction form
   1,913.98/2,870.89 = 527.47/x
3. Step 3: Cross multiply
   1,913.98x = 2,870.89 × 527.47
4. Step 4: Simplify right side
   1,913.98x = 1,514,308.35
5. Step 5: Solve for x
   x = 1,514,308.35/1,913.98
6. Step 6: Final answer
   x = 791.18