Finding the Fourth Proportional to 1,916.60, 2,870.37 and 942.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916.60 : 2,870.37 = 942.98 : x
2. Step 2: Convert to fraction form
   1,916.60/2,870.37 = 942.98/x
3. Step 3: Cross multiply
   1,916.60x = 2,870.37 × 942.98
4. Step 4: Simplify right side
   1,916.60x = 2,706,701.50
5. Step 5: Solve for x
   x = 2,706,701.50/1,916.60
6. Step 6: Final answer
   x = 1,412.24