Finding the Fourth Proportional to 1,374.84, 1,886.76 and 1,365.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374.84 : 1,886.76 = 1,365.12 : x
2. Step 2: Convert to fraction form
   1,374.84/1,886.76 = 1,365.12/x
3. Step 3: Cross multiply
   1,374.84x = 1,886.76 × 1,365.12
4. Step 4: Simplify right side
   1,374.84x = 2,575,653.81
5. Step 5: Solve for x
   x = 2,575,653.81/1,374.84
6. Step 6: Final answer
   x = 1,873.42