Finding the Fourth Proportional to 1,770.39, 2,648.16 and 1,477.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.39 : 2,648.16 = 1,477.98 : x
2. Step 2: Convert to fraction form
   1,770.39/2,648.16 = 1,477.98/x
3. Step 3: Cross multiply
   1,770.39x = 2,648.16 × 1,477.98
4. Step 4: Simplify right side
   1,770.39x = 3,913,927.52
5. Step 5: Solve for x
   x = 3,913,927.52/1,770.39
6. Step 6: Final answer
   x = 2,210.77